Examples of java.awt.image.ColorConvertOp.filter()

java.awt.image.ColorConvertOp.filter()
ColorConverts the source BufferedImage. If the destination image is null, a BufferedImage will be created with an appropriate ColorModel. @param src the source BufferedImage to be converted @param dest the destination BufferedImage, or null @return dest color converted from src or a new, converted BufferedImage if dest is null @exception IllegalArgumentException if dest is null and this op wasconstructed using the constructor which takes only a RenderingHints argument, since the operation is ill defined.

                 sRGBCompCM.getNumComponents(), new Point(0, 0));


            BufferedImage sRGBImage = new BufferedImage
                (sRGBCompCM, wr, false, null);
            ColorConvertOp colorConvertOp = new ColorConvertOp(null);
            colorConvertOp.filter(newImg, sRGBImage);


            /**
             * Integrate alpha back into the image if there is any
             */
            if (imgCM.hasAlpha()){

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            // System.out.println("src: " + srcBI.getWidth() + "x" + 
            //                    srcBI.getHeight());


            ColorConvertOp op = new ColorConvertOp(dstCM.getColorSpace(), 
                                                   null);
            dstBI = op.filter(srcBI, null);


            // System.out.println("After filter:");
            
            WritableRaster wr00 = wr.createWritableTranslatedChild(0,0);
            for (int i=0; i<dstCM.getColorSpace().getNumComponents(); i++)

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                 sRGBCompCM.getNumComponents(), new Point(0, 0));


            BufferedImage sRGBImage = new BufferedImage
                (sRGBCompCM, wr, false, null);
            ColorConvertOp colorConvertOp = new ColorConvertOp(null);
            colorConvertOp.filter(newImg, sRGBImage);


            /**
             * Integrate alpha back into the image if there is any
             */
            if (imgCM.hasAlpha()){

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                dstBI = new BufferedImage(cmna, dstWr, false, null);
            }


            ColorConvertOp op = new ColorConvertOp(null);
            op.filter(srcBI, dstBI);


            // Have to 'fix' alpha premult
            if (dstCM.hasAlpha()) {
                copyBand(srcWr, sm.getNumBands()-1,
                         wr,    getSampleModel().getNumBands()-1);

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             * System.out.println("dst: " + dstBI.getWidth() + "x" + 
             *                    dstBI.getHeight());
             */


            ColorConvertOp op = new ColorConvertOp(null);
            op.filter(srcBI, dstBI);


            if (dstCM.hasAlpha())
                copyBand(srcWr, srcSM.getNumBands()-1,
                         wr,    getSampleModel().getNumBands()-1);
        }

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    hints.put(RenderingHints.KEY_DITHERING,
        RenderingHints.VALUE_DITHER_ENABLE);


    ColorConvertOp op = new ColorConvertOp(from, to, hints);


    BufferedImage result = op.filter(bi, null);


    result = relabelColorSpace(result, to);


    return result;
  }

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    // dumpColorSpace("\tColorModel.getRGBdefaultc",
    // ColorModel.getRGBdefault().getColorSpace());


    bi = relabelColorSpace(bi, from);
    ColorConvertOp op = new ColorConvertOp(from, to, hints);
    bi = op.filter(bi, null);


    bi = relabelColorSpace(bi, from);


    bi = op.filter(bi, null);

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    ColorConvertOp op = new ColorConvertOp(from, to, hints);
    bi = op.filter(bi, null);


    bi = relabelColorSpace(bi, from);


    bi = op.filter(bi, null);


    bi = relabelColorSpace(bi, to);


    return bi;

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    ColorConvertOp op = new ColorConvertOp(from, to, hints);


    bi = relabelColorSpace(bi, from);


    BufferedImage result = op.filter(bi, null);


    result = relabelColorSpace(result, to);


    return result;
  }

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        RenderingHints hints = new RenderingHints(null);
        //This hint doesn't seem to make a difference :-(
        hints.put(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
        ColorConvertOp op = new ColorConvertOp(
                ColorSpace.getInstance(ColorSpace.CS_GRAY), hints);
        op.filter(img, buf);
        return buf;
    }


}

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