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Join Date: Jul 2008
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ImageIO.read does not work for jpgs in cmyk
trying to find a method to read it been searching on google but found lot of different results. Maybe one of you know a easy method to do this.
trying to find a method to read it been searching on google but found lot of different results. Maybe one of you know a easy method to do this.
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Join Date: Dec 2004
Location: London or Slovakia
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You may want to work with Java Advanced Imaging API or Java - ImageIO. Both have very useful forums on java.net (JAI, ImageIO)
Learn to see in another's calamity the ills which you should avoid.
Publilius Syrus
(~100 BC)
If we helped you to solve your problem, answered your question please mark your post as SOLVED.
Publilius Syrus
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i see the libraries. but still no clue where to start
all I want is to read a image to a BufferedImage of a jpeg with cmyk
if not possible than I would most likely go by converting a image with some class than make that class output the image into a bytearray stream.
looking at jaiimageio but not sure can i use it to convert a image.
all I want is to read a image to a BufferedImage of a jpeg with cmyk
if not possible than I would most likely go by converting a image with some class than make that class output the image into a bytearray stream.
looking at jaiimageio but not sure can i use it to convert a image.
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well i found a code that uses jai but the returned byte array image color isnt right.
public static BufferedImage convertCMYKtoRGB(byte[] ba) throws Exception {
int[] bitsCMYK = {8, 8, 8, 8};
ICC_ColorSpace csCMYK = new ICC_ColorSpace(ICC_Profile.getInstance(SharedData.WRITELOCATION + "images\\pdf\\CMYK.pf"));
ColorModel colorModelCMYK = new ComponentColorModel(csCMYK, bitsCMYK, false, false, java.awt.Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
ImageLayout cmykLayout = new ImageLayout();
cmykLayout.setColorModel(colorModelCMYK);
RenderingHints rh = new RenderingHints(JAI.KEY_IMAGE_LAYOUT, cmykLayout);
ByteArraySeekableStream bais = new ByteArraySeekableStream(ba);
ParameterBlock params = new ParameterBlock();
params.add(bais);
RenderedOp op = JAI.create("stream", params, rh);
bais.close();
ColorSpace csRGB = null;
csRGB = ColorSpace.getInstance(ColorSpace.CS_sRGB);
ColorModel colorModel = new ComponentColorModel(csRGB, bitsCMYK, false, false, java.awt.Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
ImageLayout il = new ImageLayout();
il.setSampleModel(colorModel.createCompatibleSampleModel(op.getWidth(), op.getHeight()));
RenderingHints hints = new RenderingHints(JAI.KEY_IMAGE_LAYOUT, il);
ParameterBlock pb = new ParameterBlock();
pb.addSource(op).add(colorModel);
il = new ImageLayout();
il.setSampleModel(colorModel.createCompatibleSampleModel(op.getWidth(), op.getHeight()));
hints = new RenderingHints(JAI.KEY_IMAGE_LAYOUT, il);
RenderedOp opNeu = JAI.create("ColorConvert", pb, hints);
BufferedImage img = opNeu.getAsBufferedImage();
return img;
} Last edited by TheBuzzer : Jul 24th, 2008 at 4:58 pm.
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I also tried
the color isnt right for this too.
PlanarImage inImage = JAI.create("fileload",SharedData.WRITELOCATION + (String) theorder.get("ordertype") + "Data\\" + String.valueOf((Integer) theorder.get("hiddenkey")) + "\\logos\\cappreview\\" + (String) theorder.getItem(item).get("previewfilename"));
BufferedImage realimage = inImage.getAsBufferedImage();
the color isnt right for this too.
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Join Date: May 2007
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Some of the info in this bug report might be of use:
http://bugs.sun.com/bugdatabase/view...bug_id=4799903
http://bugs.sun.com/bugdatabase/view...bug_id=4799903
Last edited by Ezzaral : Jul 24th, 2008 at 5:13 pm.
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well i can't figure out how to do this.
using jai i can read the jpg but cant get the colors rigth.
using jai i can read the jpg but cant get the colors rigth.
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Join Date: May 2007
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Did you read through some of the work-arounds mentioned in that bug report to translate the color space?
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Originally Posted by Ezzaral 
Did you read through some of the work-arounds mentioned in that bug report to translate the color space?
ya but the work round use other stuff i dont even know so i cant even use those functions
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Join Date: Dec 2004
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Just compare it wit javaio API
Learn to see in another's calamity the ills which you should avoid.
Publilius Syrus
(~100 BC)
If we helped you to solve your problem, answered your question please mark your post as SOLVED.
Publilius Syrus
(~100 BC)
If we helped you to solve your problem, answered your question please mark your post as SOLVED.
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