digilib-old: common/src/main/java/digilib/image/JAIDocuImage.java annotate

annotate common/src/main/java/digilib/image/JAIDocuImage.java @ 912:cbfc94584d3b

reset imgSize in operations that change size.

author	robcast
date	Wed, 08 Jun 2011 17:49:01 +0200
parents	28d007673346
children

rev	line source
1 0ff3ede32060 Initial revision robcast parents: diff changeset	1 /* JAIDocuImage -- Image class implementation using JAI (Java Advanced Imaging)
0ff3ede32060 Initial revision robcast parents: diff changeset	2
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	3 Digital Image Library servlet components
1 0ff3ede32060 Initial revision robcast parents: diff changeset	4
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	5 Copyright (C) 2001, 2002, 2003 Robert Casties (robcast@mail.berlios.de)
1 0ff3ede32060 Initial revision robcast parents: diff changeset	6
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	7 This program is free software; you can redistribute it and/or modify it
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	8 under the terms of the GNU General Public License as published by the
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	9 Free Software Foundation; either version 2 of the License, or (at your
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	10 option) any later version.
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	11
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	12 Please read license.txt for the full details. A copy of the GPL
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	13 may be found at http://www.gnu.org/copyleft/lgpl.html
1 0ff3ede32060 Initial revision robcast parents: diff changeset	14
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	15 You should have received a copy of the GNU General Public License
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	16 along with this program; if not, write to the Free Software
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
1 0ff3ede32060 Initial revision robcast parents: diff changeset	18
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	19 */
1 0ff3ede32060 Initial revision robcast parents: diff changeset	20
0ff3ede32060 Initial revision robcast parents: diff changeset	21 package digilib.image;
0ff3ede32060 Initial revision robcast parents: diff changeset	22
470 16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	23 import java.awt.Rectangle;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	24 import java.awt.RenderingHints;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	25 import java.awt.image.RenderedImage;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	26 import java.awt.image.renderable.ParameterBlock;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	27 import java.io.IOException;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	28 import java.io.OutputStream;
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	29 import java.util.ArrayList;
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	30 import java.util.Enumeration;
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	31 import java.util.Iterator;
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	32 import java.util.List;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	33
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	34 import javax.media.jai.BorderExtender;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	35 import javax.media.jai.Interpolation;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	36 import javax.media.jai.JAI;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	37 import javax.media.jai.KernelJAI;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	38 import javax.media.jai.ParameterBlockJAI;
462 03ff7238c9d4 second try for flashpix support (doesn't work currently...) robcast parents: 208 diff changeset	39 import javax.media.jai.RenderedOp;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	40 import javax.media.jai.operator.TransposeDescriptor;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	41 import javax.media.jai.operator.TransposeType;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	42
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	43 import com.sun.media.jai.codec.ImageCodec;
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	44
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	45 import digilib.io.FileOpException;
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	46 import digilib.io.FileOps;
579 efd7a223f819 try: ImageInput as interface, ImageFile inherits from Dirent and implements ImageInput robcast parents: 574 diff changeset	47 import digilib.io.ImageInput;
596 2b58d2783ef0 small cleanup robcast parents: 588 diff changeset	48 import digilib.util.ImageSize;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	49
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	50 /** A DocuImage implementation using Java Advanced Imaging Library. */
570 fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	51 /**
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	52 * @author casties
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	53 *
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	54 */
564 4c51d71aef13 more reshuffling of classes robcast parents: 563 diff changeset	55 public class JAIDocuImage extends ImageInfoDocuImage {
1 0ff3ede32060 Initial revision robcast parents: diff changeset	56
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	57 protected RenderedImage img;
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	58
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	59 protected Interpolation interpol = null;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	60
470 16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	61 /*
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	62 * static { // we could set our own tile cache size here TileCache tc =
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	63 * JAI.createTileCache(10010241024);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	64 * JAI.getDefaultInstance().setTileCache(tc); }
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	65 */
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	66
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	67 public boolean isSubimageSupported() {
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	68 return true;
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	69 }
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	70
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	71 /*
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	72 * Real setQuality implementation. Creates the correct Interpolation.
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	73 */
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	74 public void setQuality(int qual) {
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	75 quality = qual;
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	76 // setup interpolation quality
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	77 if (qual > 1) {
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	78 logger.debug("quality q2");
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	79 interpol = Interpolation.getInstance(Interpolation.INTERP_BICUBIC);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	80 } else if (qual == 1) {
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	81 logger.debug("quality q1");
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	82 interpol = Interpolation.getInstance(Interpolation.INTERP_BILINEAR);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	83 } else {
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	84 logger.debug("quality q0");
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	85 interpol = Interpolation.getInstance(Interpolation.INTERP_NEAREST);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	86 }
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	87 }
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	88
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	89 /* returns a list of supported image formats */
531 9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	90 @SuppressWarnings("unchecked") // ImageCodec.getCodecs() returns a naked Enumeration
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	91 public Iterator<String> getSupportedFormats() {
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	92 Enumeration<ImageCodec> codecs = ImageCodec.getCodecs();
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	93 List<String> formats = new ArrayList<String>();
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	94 for (ImageCodec codec = codecs.nextElement(); codecs.hasMoreElements(); codec = codecs
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	95 .nextElement()) {
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	96 logger.debug("known format:"+codec.getFormatName());
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	97 formats.add(codec.getFormatName());
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	98 }
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	99 logger.debug("tilecachesize:"
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	100 + JAI.getDefaultInstance().getTileCache().getMemoryCapacity());
9cedd170b581 * PDF generation works now even with subdirectories robcast parents: 1 diff changeset	101 return formats.iterator();
1 0ff3ede32060 Initial revision robcast parents: diff changeset	102 }
462 03ff7238c9d4 second try for flashpix support (doesn't work currently...) robcast parents: 208 diff changeset	103
470 16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	104 /* Check image size and type and store in ImageFile f */
588 aee436f0549d more work on stream input robcast parents: 574 diff changeset	105 public ImageInput identify(ImageInput input) throws IOException {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	106 this.input = input;
563 686086d6e6d6 more refactoring and rearranging robcast parents: 543 diff changeset	107 // try parent method first
588 aee436f0549d more work on stream input robcast parents: 574 diff changeset	108 ImageInput imf = super.identify(input);
563 686086d6e6d6 more refactoring and rearranging robcast parents: 543 diff changeset	109 if (imf != null) {
686086d6e6d6 more refactoring and rearranging robcast parents: 543 diff changeset	110 return imf;
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	111 }
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	112 /*
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	113 * try JAI
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	114 */
588 aee436f0549d more work on stream input robcast parents: 574 diff changeset	115 logger.debug("identifying (JAI) " + input);
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	116 try {
588 aee436f0549d more work on stream input robcast parents: 574 diff changeset	117 RenderedOp img = null;
aee436f0549d more work on stream input robcast parents: 574 diff changeset	118 if (input.hasFile()) {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	119 String t = FileOps.mimeForFile(input.getFile());
aee436f0549d more work on stream input robcast parents: 574 diff changeset	120 input.setMimetype(t);
aee436f0549d more work on stream input robcast parents: 574 diff changeset	121 img = JAI.create("fileload", input.getFile().getAbsolutePath());
aee436f0549d more work on stream input robcast parents: 574 diff changeset	122 } else if (input.hasInputStream()) {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	123 img = JAI.create("stream", input.getInputStream());
aee436f0549d more work on stream input robcast parents: 574 diff changeset	124 // FIXME: where do we get the mimetype?
aee436f0549d more work on stream input robcast parents: 574 diff changeset	125 } else {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	126 throw new FileOpException("unable to get data for image!");
aee436f0549d more work on stream input robcast parents: 574 diff changeset	127 }
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	128 ImageSize d = new ImageSize(img.getWidth(), img.getHeight());
588 aee436f0549d more work on stream input robcast parents: 574 diff changeset	129 input.setSize(d);
aee436f0549d more work on stream input robcast parents: 574 diff changeset	130 logger.debug("image size: " + d);
aee436f0549d more work on stream input robcast parents: 574 diff changeset	131 return input;
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	132 } catch (Exception e) {
588 aee436f0549d more work on stream input robcast parents: 574 diff changeset	133 throw new FileOpException("ERROR: unable to identify image!");
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	134 }
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	135 }
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	136
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	137 /* Load an image file into the Object. */
588 aee436f0549d more work on stream input robcast parents: 574 diff changeset	138 public void loadImage(ImageInput ii) throws FileOpException {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	139 this.input = ii;
aee436f0549d more work on stream input robcast parents: 574 diff changeset	140 if (ii.hasFile()) {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	141 img = JAI.create("fileload", ii.getFile().getAbsolutePath());
aee436f0549d more work on stream input robcast parents: 574 diff changeset	142 } else if (ii.hasInputStream()) {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	143 img = JAI.create("stream", ii.getInputStream());
aee436f0549d more work on stream input robcast parents: 574 diff changeset	144 } else {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	145 throw new FileOpException("unable to get data for image!");
aee436f0549d more work on stream input robcast parents: 574 diff changeset	146 }
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	147 if (img == null) {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	148 throw new FileOpException("Unable to load File!");
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	149 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	150 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	151
470 16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	152 /* Load an image file into the Object. */
588 aee436f0549d more work on stream input robcast parents: 574 diff changeset	153 public void loadSubimage(ImageInput ii, Rectangle region, int subsample) throws FileOpException {
470 16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	154 logger.debug("loadSubimage");
588 aee436f0549d more work on stream input robcast parents: 574 diff changeset	155 this.input = ii;
aee436f0549d more work on stream input robcast parents: 574 diff changeset	156 if (ii.hasFile()) {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	157 img = JAI.create("fileload", ii.getFile().getAbsolutePath());
aee436f0549d more work on stream input robcast parents: 574 diff changeset	158 } else if (ii.hasInputStream()) {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	159 img = JAI.create("stream", ii.getInputStream());
aee436f0549d more work on stream input robcast parents: 574 diff changeset	160 } else {
aee436f0549d more work on stream input robcast parents: 574 diff changeset	161 throw new FileOpException("unable to get data for image!");
aee436f0549d more work on stream input robcast parents: 574 diff changeset	162 }
470 16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	163 if ((region.width < img.getWidth())
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	164 \|\| (region.height < img.getHeight())) {
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	165 // setup Crop
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	166 ParameterBlock cp = new ParameterBlock();
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	167 cp.addSource(img);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	168 cp.add((float) region.x);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	169 cp.add((float) region.y);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	170 cp.add((float) region.width);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	171 cp.add((float) region.height);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	172 logger.debug("loadSubimage: crop");
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	173 img = JAI.create("crop", cp);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	174 }
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	175 if (subsample > 1) {
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	176 float sc = 1f / subsample;
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	177 ParameterBlockJAI sp = new ParameterBlockJAI("scale");
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	178 sp.addSource(img);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	179 sp.setParameter("xScale", sc);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	180 sp.setParameter("yScale", sc);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	181 sp.setParameter("interpolation", Interpolation
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	182 .getInstance(Interpolation.INTERP_NEAREST));
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	183 // scale
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	184 logger.debug("loadSubimage: scale");
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	185 img = JAI.create("scale", sp);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	186 }
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	187 }
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	188
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	189 /* Write the current image to an OutputStream. */
906 28d007673346 really works with streams now. robcast parents: 903 diff changeset	190 public void writeImage(String mt, OutputStream ostream) throws ImageOpException, FileOpException {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	191 try {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	192 // setup output
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	193 ParameterBlock pb3 = new ParameterBlock();
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	194 pb3.addSource(img);
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	195 pb3.add(ostream);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	196 if (mt == "image/jpeg") {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	197 pb3.add("JPEG");
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	198 } else if (mt == "image/png") {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	199 pb3.add("PNG");
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	200 } else {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	201 // unknown mime type
570 fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	202 throw new ImageOpException("Unknown mime type: " + mt);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	203 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	204 // render output
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	205 JAI.create("encode", pb3);
1 0ff3ede32060 Initial revision robcast parents: diff changeset	206
570 fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	207 } catch (RuntimeException e) {
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	208 // JAI likes to throw RuntimeExceptions
906 28d007673346 really works with streams now. robcast parents: 903 diff changeset	209 throw new FileOpException("Error writing image: "+e);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	210 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	211 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	212
570 fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	213 /* returns the current image size
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	214 * @see digilib.image.DocuImageImpl#getSize()
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	215 */
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	216 public ImageSize getSize() {
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	217 ImageSize is = null;
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	218 // TODO: do we want to cache imgSize?
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	219 int h = 0;
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	220 int w = 0;
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	221 if (img != null) {
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	222 // get size from image
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	223 h = img.getHeight();
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	224 w = img.getWidth();
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	225 is = new ImageSize(w, h);
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	226 }
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	227 return is;
fd2ef7e46119 more cleanup, set version to 1.8.2 robcast parents: 564 diff changeset	228 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	229
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	230 /* scales the current image */
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 144 diff changeset	231 public void scale(double scale, double scaleY) throws ImageOpException {
208 460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	232 logger.debug("scale");
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	233 if ((scale < 1) && (img.getColorModel().getPixelSize() == 1)
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	234 && (quality > 0)) {
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	235 /*
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	236 * "SubsampleBinaryToGray" for downscaling BW
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	237 */
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	238 scaleBinary((float) scale);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	239 } else if ((scale <= 0.5) && (quality > 1)) {
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	240 /*
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	241 * blur and "Scale" for downscaling color images
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	242 */
470 16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	243 if ((scale <= 0.5) && (quality > 1)) {
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	244 int bl = (int) Math.floor(1 / scale);
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	245 // don't blur more than 3
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	246 blur(Math.min(bl, 3));
16bd70715ac3 Improved performance of JAIDocuImage for large images robcast parents: 468 diff changeset	247 }
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	248 scaleAll((float) scale);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	249 } else {
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	250 /*
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	251 * "Scale" for the rest
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	252 */
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	253 scaleAll((float) scale);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	254 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	255
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	256 // DEBUG
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	257 logger.debug("SCALE: " + scale + " ->" + img.getWidth() + "x"
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	258 + img.getHeight());
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	259
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	260 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	261
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	262 public void scaleAll(float scale) throws ImageOpException {
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	263 RenderedImage scaledImg;
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	264 // DEBUG
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	265 logger.debug("scaleAll: " + scale);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	266 ParameterBlockJAI param = new ParameterBlockJAI("Scale");
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	267 param.addSource(img);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	268 param.setParameter("xScale", scale);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	269 param.setParameter("yScale", scale);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	270 param.setParameter("interpolation", interpol);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	271 // hint with border extender
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	272 RenderingHints hint = new RenderingHints(JAI.KEY_BORDER_EXTENDER,
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	273 BorderExtender.createInstance(BorderExtender.BORDER_COPY));
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	274 // scale
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	275 scaledImg = JAI.create("Scale", param, hint);
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	276
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	277 if (scaledImg == null) {
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	278 throw new ImageOpException("Unable to scale");
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	279 }
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	280 img = scaledImg;
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	281 }
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	282
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	283 public void blur(int radius) throws ImageOpException {
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	284 RenderedImage blurredImg;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	285 int klen = Math.max(radius, 2);
468 0fc853d98820 Experiment with TileCache size (better leave it...) robcast parents: 466 diff changeset	286 logger.debug("blur: " + klen);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	287 int ksize = klen * klen;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	288 float f = 1f / ksize;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	289 float[] kern = new float[ksize];
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	290 for (int i = 0; i < ksize; i++) {
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	291 kern[i] = f;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	292 }
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	293 KernelJAI blur = new KernelJAI(klen, klen, kern);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	294 ParameterBlockJAI param = new ParameterBlockJAI("Convolve");
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	295 param.addSource(img);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	296 param.setParameter("kernel", blur);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	297 // hint with border extender
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	298 RenderingHints hint = new RenderingHints(JAI.KEY_BORDER_EXTENDER,
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	299 BorderExtender.createInstance(BorderExtender.BORDER_COPY));
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	300 blurredImg = JAI.create("Convolve", param, hint);
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	301 if (blurredImg == null) {
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	302 throw new ImageOpException("Unable to scale");
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	303 }
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	304 img = blurredImg;
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	305 }
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	306
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	307 public void scaleBinary(float scale) throws ImageOpException {
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	308 RenderedImage scaledImg;
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	309 // DEBUG
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	310 logger.debug("scaleBinary: " + scale);
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	311 ParameterBlockJAI param = new ParameterBlockJAI("SubsampleBinaryToGray");
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	312 param.addSource(img);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	313 param.setParameter("xScale", scale);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	314 param.setParameter("yScale", scale);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	315 // hint with border extender
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	316 RenderingHints hint = new RenderingHints(JAI.KEY_BORDER_EXTENDER,
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	317 BorderExtender.createInstance(BorderExtender.BORDER_COPY));
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	318 // scale
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	319 scaledImg = JAI.create("SubsampleBinaryToGray", param, hint);
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	320 if (scaledImg == null) {
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	321 throw new ImageOpException("Unable to scale");
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	322 }
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	323 img = scaledImg;
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	324 }
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	325
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	326 /* crops the current image */
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	327 public void crop(int x_off, int y_off, int width, int height)
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	328 throws ImageOpException {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	329 // setup Crop
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	330 ParameterBlock param = new ParameterBlock();
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	331 param.addSource(img);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	332 param.add((float) x_off);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	333 param.add((float) y_off);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	334 param.add((float) width);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	335 param.add((float) height);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	336 RenderedImage croppedImg = JAI.create("crop", param);
1 0ff3ede32060 Initial revision robcast parents: diff changeset	337
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	338 logger.debug("CROP: " + x_off + "," + y_off + ", " + width + ","
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	339 + height + " ->" + croppedImg.getWidth() + "x"
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	340 + croppedImg.getHeight());
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	341 img = croppedImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	342 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	343
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	344 /* rotates the current image */
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	345 public void rotate(double angle) throws ImageOpException {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	346 RenderedImage rotImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	347 // convert degrees to radians
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	348 double rangle = Math.toRadians(angle);
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	349 double x = img.getWidth() / 2;
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	350 double y = img.getHeight() / 2;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	351
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	352 // optimize rotation by right angles
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	353 TransposeType rotOp = null;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	354 if (Math.abs(angle - 0) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	355 // 0 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	356 return;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	357 } else if (Math.abs(angle - 90) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	358 // 90 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	359 rotOp = TransposeDescriptor.ROTATE_90;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	360 } else if (Math.abs(angle - 180) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	361 // 180 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	362 rotOp = TransposeDescriptor.ROTATE_180;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	363 } else if (Math.abs(angle - 270) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	364 // 270 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	365 rotOp = TransposeDescriptor.ROTATE_270;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	366 } else if (Math.abs(angle - 360) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	367 // 360 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	368 return;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	369 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	370 if (rotOp != null) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	371 // use Transpose operation
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	372 ParameterBlock pb = new ParameterBlock();
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	373 pb.addSource(img);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	374 pb.add(rotOp);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	375 rotImg = JAI.create("transpose", pb);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	376 } else {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	377 // setup "normal" rotation
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	378 ParameterBlock param = new ParameterBlock();
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	379 param.addSource(img);
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	380 param.add((float) x);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	381 param.add((float) y);
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	382 param.add((float) rangle);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	383 param.add(interpol);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	384
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	385 rotImg = JAI.create("rotate", param);
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	386 }
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	387
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	388 logger.debug("ROTATE: " + x + "," + y + ", " + angle + " (" + rangle
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	389 + ")" + " ->" + rotImg.getWidth() + "x" + rotImg.getHeight());
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	390 img = rotImg;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	391 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	392
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	393 /*
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	394 * mirrors the current image works only horizontal and vertical
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	395 */
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	396 public void mirror(double angle) throws ImageOpException {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	397 RenderedImage mirImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	398 // only mirroring by right angles
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	399 TransposeType rotOp = null;
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	400 if (Math.abs(angle) < epsilon) {
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	401 // 0 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	402 rotOp = TransposeDescriptor.FLIP_HORIZONTAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	403 } else if (Math.abs(angle - 90) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	404 // 90 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	405 rotOp = TransposeDescriptor.FLIP_VERTICAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	406 } else if (Math.abs(angle - 180) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	407 // 180 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	408 rotOp = TransposeDescriptor.FLIP_HORIZONTAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	409 } else if (Math.abs(angle - 270) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	410 // 270 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	411 rotOp = TransposeDescriptor.FLIP_VERTICAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	412 } else if (Math.abs(angle - 360) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	413 // 360 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	414 rotOp = TransposeDescriptor.FLIP_HORIZONTAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	415 }
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	416 // use Transpose operation
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	417 ParameterBlock param = new ParameterBlock();
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	418 param.addSource(img);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	419 param.add(rotOp);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	420 mirImg = JAI.create("transpose", param);
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	421
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	422 if (mirImg == null) {
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	423 throw new ImageOpException("Unable to flip");
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	424 }
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	425 img = mirImg;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	426 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	427
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	428 /* contrast and brightness enhancement */
86 997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	429 public void enhance(float mult, float add) throws ImageOpException {
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	430 RenderedImage enhImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	431 double[] ma = { mult };
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	432 double[] aa = { add };
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	433 // use Rescale operation
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	434 ParameterBlock param = new ParameterBlock();
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	435 param.addSource(img);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	436 param.add(ma);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	437 param.add(aa);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	438 enhImg = JAI.create("rescale", param);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	439
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	440 logger.debug("ENHANCE: *" + mult + ", +" + add + " ->"
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	441 + enhImg.getWidth() + "x" + enhImg.getHeight());
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	442 // DEBUG
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	443 img = enhImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	444 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	445
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	446 /*
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	447 * (non-Javadoc)
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	448 *
90 8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	449 * @see digilib.image.DocuImage#enhanceRGB(float[], float[])
8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	450 */
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	451 public void enhanceRGB(float[] rgbm, float[] rgba) throws ImageOpException {
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	452 RenderedImage enhImg;
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	453 int nb = rgbm.length;
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	454 double[] ma = new double[nb];
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	455 double[] aa = new double[nb];
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	456 for (int i = 0; i < nb; i++) {
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	457 ma[i] = rgbm[i];
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	458 aa[i] = rgba[i];
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	459 }
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	460 // use Rescale operation
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	461 ParameterBlock param = new ParameterBlock();
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	462 param.addSource(img);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	463 param.add(ma);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	464 param.add(aa);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	465 enhImg = JAI.create("rescale", param);
90 8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	466
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	467 logger.debug("ENHANCE_RGB: *" + rgbm + ", +" + rgba + " ->"
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	468 + enhImg.getWidth() + "x" + enhImg.getHeight());
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	469 img = enhImg;
90 8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	470 }
8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	471
466 64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	472 /*
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	473 * (non-Javadoc)
64cc0edac363 Servlet version 1.10b robcast parents: 462 diff changeset	474 *
208 460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	475 * @see digilib.image.DocuImage#dispose()
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	476 */
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	477 public void dispose() {
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	478 img = null;
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	479 }
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	480
1 0ff3ede32060 Initial revision robcast parents: diff changeset	481 }

Mercurial > hg > digilib-old

annotate common/src/main/java/digilib/image/JAIDocuImage.java @ 912:cbfc94584d3b