digilib-old: servlet/src/digilib/image/JAIDocuImage.java annotate

annotate servlet/src/digilib/image/JAIDocuImage.java @ 445:6154dfc67615

pageWidth (not yet working in IE)

author	hertzhaft
date	Fri, 13 Jan 2006 12:31:00 +0100
parents	460cd1f18b96
children	03ff7238c9d4

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
0ff3ede32060 Initial revision robcast parents: diff changeset	3 Digital Image Library servlet components
0ff3ede32060 Initial revision robcast parents: diff changeset	4
85 4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	5 Copyright (C) 2001, 2002, 2003 Robert Casties (robcast@mail.berlios.de)
1 0ff3ede32060 Initial revision robcast parents: diff changeset	6
0ff3ede32060 Initial revision robcast parents: diff changeset	7 This program is free software; you can redistribute it and/or modify it
0ff3ede32060 Initial revision robcast parents: diff changeset	8 under the terms of the GNU General Public License as published by the
0ff3ede32060 Initial revision robcast parents: diff changeset	9 Free Software Foundation; either version 2 of the License, or (at your
0ff3ede32060 Initial revision robcast parents: diff changeset	10 option) any later version.
0ff3ede32060 Initial revision robcast parents: diff changeset	11
0ff3ede32060 Initial revision robcast parents: diff changeset	12 Please read license.txt for the full details. A copy of the GPL
0ff3ede32060 Initial revision robcast parents: diff changeset	13 may be found at http://www.gnu.org/copyleft/lgpl.html
0ff3ede32060 Initial revision robcast parents: diff changeset	14
0ff3ede32060 Initial revision robcast parents: diff changeset	15 You should have received a copy of the GNU General Public License
0ff3ede32060 Initial revision robcast parents: diff changeset	16 along with this program; if not, write to the Free Software
0ff3ede32060 Initial revision robcast parents: diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
0ff3ede32060 Initial revision robcast parents: diff changeset	18
0ff3ede32060 Initial revision robcast parents: diff changeset	19 */
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
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	23 import java.awt.RenderingHints;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	24 import java.awt.image.RenderedImage;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	25 import java.awt.image.renderable.ParameterBlock;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	26 import java.io.IOException;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	27 import java.io.OutputStream;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	28
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	29 import javax.media.jai.BorderExtender;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	30 import javax.media.jai.Interpolation;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	31 import javax.media.jai.JAI;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	32 import javax.media.jai.KernelJAI;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	33 import javax.media.jai.ParameterBlockJAI;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	34 import javax.media.jai.operator.TransposeDescriptor;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	35 import javax.media.jai.operator.TransposeType;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	36
159 e743b853efca servlet version 1.16a4 robcast parents: 149 diff changeset	37 import digilib.io.ImageFile;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	38 import digilib.io.FileOpException;
1 0ff3ede32060 Initial revision robcast parents: diff changeset	39
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	40 /** A DocuImage implementation using Java Advanced Imaging Library. */
1 0ff3ede32060 Initial revision robcast parents: diff changeset	41 public class JAIDocuImage extends DocuImageImpl {
0ff3ede32060 Initial revision robcast parents: diff changeset	42
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	43 protected RenderedImage img;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	44 protected Interpolation interpol = null;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	45
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	46 /* Load an image file into the Object. */
159 e743b853efca servlet version 1.16a4 robcast parents: 149 diff changeset	47 public void loadImage(ImageFile f) throws FileOpException {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	48 System.gc();
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 144 diff changeset	49 img = JAI.create("fileload", f.getFile().getAbsolutePath());
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	50 if (img == null) {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	51 throw new FileOpException("Unable to load File!");
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	52 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	53 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	54
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	55 /* Write the current image to an OutputStream. */
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	56 public void writeImage(String mt, OutputStream ostream)
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	57 throws FileOpException {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	58 try {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	59 // setup output
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	60 ParameterBlock pb3 = new ParameterBlock();
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	61 pb3.addSource(img);
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	62 pb3.add(ostream);
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	63 if (mt == "image/jpeg") {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	64 pb3.add("JPEG");
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	65 } else if (mt == "image/png") {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	66 pb3.add("PNG");
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	67 } else {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	68 // unknown mime type
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	69 throw new FileOpException("Unknown mime type: " + mt);
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	70 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	71 // render output
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	72 JAI.create("encode", pb3);
1 0ff3ede32060 Initial revision robcast parents: diff changeset	73
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	74 } catch (IOException e) {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	75 throw new FileOpException("Error writing image.");
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	76 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	77 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	78
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	79 /* Real setQuality implementation.
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	80 * Creates the correct Interpolation.
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	81 */
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	82 public void setQuality(int qual) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	83 quality = qual;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	84 // setup interpolation quality
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	85 if (qual > 1) {
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	86 logger.debug("quality q2");
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	87 interpol = Interpolation.getInstance(Interpolation.INTERP_BICUBIC);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	88 } else if (qual == 1) {
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	89 logger.debug("quality q1");
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	90 interpol = Interpolation.getInstance(Interpolation.INTERP_BILINEAR);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	91 } else {
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	92 logger.debug("quality q0");
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	93 interpol = Interpolation.getInstance(Interpolation.INTERP_NEAREST);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	94 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	95 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	96
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	97 /** The width of the curent image in pixel.
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	98 * @return Image width in pixels.
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	99 */
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	100 public int getWidth() {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	101 if (img != null) {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	102 return img.getWidth();
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	103 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	104 return 0;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	105 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	106
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	107 /** The height of the curent image in pixel.
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	108 * @return Image height in pixels.
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	109 */
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	110 public int getHeight() {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	111 if (img != null) {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	112 return img.getHeight();
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	113 }
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	114 return 0;
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	115 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	116
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	117 /* scales the current image */
149 04ad64b2137a Servlet version 1.14b1 robcast parents: 144 diff changeset	118 public void scale(double scale, double scaleY) throws ImageOpException {
208 460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	119 logger.debug("scale");
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	120 if ((scale < 1)
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	121 && (img.getColorModel().getPixelSize() == 1)
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	122 && (quality > 0)) {
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	123 /*
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	124 * "SubsampleBinaryToGray" for downscaling BW
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	125 */
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	126 scaleBinary((float) scale);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	127 } else if ((scale <= 0.5) && (quality > 1)) {
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	128 /*
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	129 * blur and "Scale" for downscaling color images
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	130 */
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	131 int subsample = (int) Math.floor(1 / scale);
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	132 blur(subsample);
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	133 scaleAll((float) scale);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	134 } else {
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	135 /*
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	136 * "Scale" for the rest
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	137 */
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	138 scaleAll((float) scale);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	139 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	140
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	141 //DEBUG
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	142 logger.debug("SCALE: " + scale + " ->" + img.getWidth() + "x" + img.getHeight());
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	143
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	144 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	145
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	146 public void scaleAll(float scale) throws ImageOpException {
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	147 RenderedImage scaledImg;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	148 //DEBUG
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	149 logger.debug("scaleAll: " + scale);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	150 ParameterBlockJAI param = new ParameterBlockJAI("Scale");
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	151 param.addSource(img);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	152 param.setParameter("xScale", scale);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	153 param.setParameter("yScale", scale);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	154 param.setParameter("interpolation", interpol);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	155 // hint with border extender
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	156 RenderingHints hint =
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	157 new RenderingHints(
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	158 JAI.KEY_BORDER_EXTENDER,
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	159 BorderExtender.createInstance(BorderExtender.BORDER_COPY));
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	160 // scale
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	161 scaledImg = JAI.create("Scale", param, hint);
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	162
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	163 if (scaledImg == null) {
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	164 throw new ImageOpException("Unable to scale");
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	165 }
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	166 img = scaledImg;
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	167 }
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	168
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	169 public void blur(int radius) throws ImageOpException {
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	170 RenderedImage blurredImg;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	171 //DEBUG
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	172 logger.debug("blur: " + radius);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	173 int klen = Math.max(radius, 2);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	174 int ksize = klen * klen;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	175 float f = 1f / ksize;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	176 float[] kern = new float[ksize];
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	177 for (int i = 0; i < ksize; i++) {
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	178 kern[i] = f;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	179 }
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	180 KernelJAI blur = new KernelJAI(klen, klen, kern);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	181 ParameterBlockJAI param = new ParameterBlockJAI("Convolve");
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	182 param.addSource(img);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	183 param.setParameter("kernel", blur);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	184 // hint with border extender
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	185 RenderingHints hint =
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	186 new RenderingHints(
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	187 JAI.KEY_BORDER_EXTENDER,
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	188 BorderExtender.createInstance(BorderExtender.BORDER_COPY));
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	189 blurredImg = JAI.create("Convolve", param, hint);
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	190 if (blurredImg == null) {
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	191 throw new ImageOpException("Unable to scale");
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	192 }
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	193 img = blurredImg;
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	194 }
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	195
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	196 public void scaleBinary(float scale) throws ImageOpException {
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	197 RenderedImage scaledImg;
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	198 //DEBUG
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	199 logger.debug("scaleBinary: " + scale);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	200 ParameterBlockJAI param =
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	201 new ParameterBlockJAI("SubsampleBinaryToGray");
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	202 param.addSource(img);
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	203 param.setParameter("xScale", scale);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	204 param.setParameter("yScale", scale);
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	205 // hint with border extender
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	206 RenderingHints hint =
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	207 new RenderingHints(
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	208 JAI.KEY_BORDER_EXTENDER,
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	209 BorderExtender.createInstance(BorderExtender.BORDER_COPY));
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	210 // scale
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	211 scaledImg = JAI.create("SubsampleBinaryToGray", param, hint);
144 d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	212 if (scaledImg == null) {
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	213 throw new ImageOpException("Unable to scale");
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	214 }
d87a7e2515af Sevlet version 1.12b5 robcast parents: 142 diff changeset	215 img = scaledImg;
142 f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	216 }
f52a7664a807 Servlet version 1.12b3 robcast parents: 101 diff changeset	217
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	218 /* crops the current image */
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	219 public void crop(int x_off, int y_off, int width, int height)
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	220 throws ImageOpException {
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	221 // setup Crop
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	222 ParameterBlock param = new ParameterBlock();
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	223 param.addSource(img);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	224 param.add((float) x_off);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	225 param.add((float) y_off);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	226 param.add((float) width);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	227 param.add((float) height);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	228 RenderedImage croppedImg = JAI.create("crop", param);
1 0ff3ede32060 Initial revision robcast parents: diff changeset	229
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	230 logger.debug("CROP: "
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	231 + x_off
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	232 + ","
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	233 + y_off
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	234 + ", "
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	235 + width
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	236 + ","
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	237 + height
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	238 + " ->"
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	239 + croppedImg.getWidth()
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	240 + "x"
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	241 + croppedImg.getHeight());
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	242 //DEBUG
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	243
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	244 if (croppedImg == null) {
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	245 throw new ImageOpException("Unable to crop");
3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	246 }
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	247 img = croppedImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	248 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	249
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	250 /* rotates the current image */
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	251 public void rotate(double angle) throws ImageOpException {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	252 RenderedImage rotImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	253 // convert degrees to radians
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	254 double rangle = Math.toRadians(angle);
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	255 double x = img.getWidth() / 2;
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	256 double y = img.getHeight() / 2;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	257
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	258 // optimize rotation by right angles
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	259 TransposeType rotOp = null;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	260 if (Math.abs(angle - 0) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	261 // 0 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	262 return;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	263 } else if (Math.abs(angle - 90) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	264 // 90 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	265 rotOp = TransposeDescriptor.ROTATE_90;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	266 } else if (Math.abs(angle - 180) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	267 // 180 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	268 rotOp = TransposeDescriptor.ROTATE_180;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	269 } else if (Math.abs(angle - 270) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	270 // 270 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	271 rotOp = TransposeDescriptor.ROTATE_270;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	272 } else if (Math.abs(angle - 360) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	273 // 360 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	274 return;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	275 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	276 if (rotOp != null) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	277 // use Transpose operation
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	278 ParameterBlock pb = new ParameterBlock();
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	279 pb.addSource(img);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	280 pb.add(rotOp);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	281 rotImg = JAI.create("transpose", pb);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	282 } else {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	283 // setup "normal" rotation
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	284 ParameterBlock param = new ParameterBlock();
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	285 param.addSource(img);
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	286 param.add((float) x);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	287 param.add((float) y);
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	288 param.add((float) rangle);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	289 param.add(interpol);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	290
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	291 rotImg = JAI.create("rotate", param);
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	292 }
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	293
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	294 logger.debug("ROTATE: "
85 4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	295 + x
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	296 + ","
85 4e6757e8ccd4 New enhanced ImageLoader stuff. robcast parents: 79 diff changeset	297 + y
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	298 + ", "
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	299 + angle
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	300 + " ("
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	301 + rangle
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	302 + ")"
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	303 + " ->"
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	304 + rotImg.getWidth()
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	305 + "x"
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	306 + rotImg.getHeight());
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	307 //DEBUG
1 0ff3ede32060 Initial revision robcast parents: diff changeset	308
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	309 if (rotImg == null) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	310 throw new ImageOpException("Unable to rotate");
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	311 }
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	312 img = rotImg;
73 3b8797fc3e90 New servlet version 1.5b. robcast parents: 1 diff changeset	313 }
1 0ff3ede32060 Initial revision robcast parents: diff changeset	314
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	315 /* mirrors the current image
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	316 * works only horizontal and vertical
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	317 */
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	318 public void mirror(double angle) throws ImageOpException {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	319 RenderedImage mirImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	320 // only mirroring by right angles
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	321 TransposeType rotOp = null;
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	322 if (Math.abs(angle) < epsilon) {
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	323 // 0 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	324 rotOp = TransposeDescriptor.FLIP_HORIZONTAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	325 } else if (Math.abs(angle - 90) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	326 // 90 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	327 rotOp = TransposeDescriptor.FLIP_VERTICAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	328 } else if (Math.abs(angle - 180) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	329 // 180 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	330 rotOp = TransposeDescriptor.FLIP_HORIZONTAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	331 } else if (Math.abs(angle - 270) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	332 // 270 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	333 rotOp = TransposeDescriptor.FLIP_VERTICAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	334 } else if (Math.abs(angle - 360) < epsilon) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	335 // 360 degree
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	336 rotOp = TransposeDescriptor.FLIP_HORIZONTAL;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	337 }
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	338 // use Transpose operation
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	339 ParameterBlock param = new ParameterBlock();
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	340 param.addSource(img);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	341 param.add(rotOp);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	342 mirImg = JAI.create("transpose", param);
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	343
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	344 if (mirImg == null) {
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	345 throw new ImageOpException("Unable to flip");
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	346 }
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	347 img = mirImg;
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	348 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	349
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	350 /* contrast and brightness enhancement */
86 997ba69afb81 New version 1.8b1. robcast parents: 85 diff changeset	351 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	352 RenderedImage enhImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	353 double[] ma = { mult };
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	354 double[] aa = { add };
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	355 // use Rescale operation
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	356 ParameterBlock param = new ParameterBlock();
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	357 param.addSource(img);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	358 param.add(ma);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	359 param.add(aa);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	360 enhImg = JAI.create("rescale", param);
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	361
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	362 logger.debug("ENHANCE: *"
79 63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	363 + mult
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	364 + ", +"
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	365 + add
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	366 + " ->"
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	367 + enhImg.getWidth()
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	368 + "x"
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	369 + enhImg.getHeight());
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	370 //DEBUG
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	371
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	372 if (enhImg == null) {
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	373 throw new ImageOpException("Unable to enhance");
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	374 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	375 img = enhImg;
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	376 }
63c8186455c1 Servlet version 1.6b. Further cleanup and new functionality: robcast parents: 73 diff changeset	377
90 8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	378 /* (non-Javadoc)
8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	379 * @see digilib.image.DocuImage#enhanceRGB(float[], float[])
8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	380 */
8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	381 public void enhanceRGB(float[] rgbm, float[] rgba)
8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	382 throws ImageOpException {
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	383 RenderedImage enhImg;
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	384 int nb = rgbm.length;
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	385 double[] ma = new double[nb];
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	386 double[] aa = new double[nb];
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	387 for (int i = 0; i < nb; i++) {
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	388 ma[i] = rgbm[i];
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	389 aa[i] = rgba[i];
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	390 }
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	391 // use Rescale operation
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	392 ParameterBlock param = new ParameterBlock();
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	393 param.addSource(img);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	394 param.add(ma);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	395 param.add(aa);
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	396 enhImg = JAI.create("rescale", param);
90 8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	397
181 afe7ff98bb71 Servlet version 1.18b1 robcast parents: 159 diff changeset	398 logger.debug("ENHANCE_RGB: *"
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	399 + rgbm
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	400 + ", +"
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	401 + rgba
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	402 + " ->"
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	403 + enhImg.getWidth()
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	404 + "x"
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	405 + enhImg.getHeight());
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	406 //DEBUG
90 8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	407
101 78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	408 if (enhImg == null) {
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	409 throw new ImageOpException("Unable to enhanceRGB");
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	410 }
78f52a1876fe digilib V1.9b1 robcast parents: 90 diff changeset	411 img = enhImg;
90 8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	412 }
8058d3b3466a New version 1.8b4. robcast parents: 86 diff changeset	413
208 460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	414 /* (non-Javadoc)
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	415 * @see digilib.image.DocuImage#dispose()
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	416 */
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	417 public void dispose() {
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	418 img = null;
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	419 }
460cd1f18b96 Servlet version 1.18b9 -- cleanup and bugfixes robcast parents: 185 diff changeset	420
1 0ff3ede32060 Initial revision robcast parents: diff changeset	421 }

Mercurial > hg > digilib-old

annotate servlet/src/digilib/image/JAIDocuImage.java @ 445:6154dfc67615