Examples of ae.java.awt.image.BufferedImage

ae.java.awt.image.BufferedImage
The BufferedImage subclass describes an {@link ae.java.awt.Image Image} with an accessible buffer of image data.A BufferedImage is comprised of a {@link ColorModel} and a{@link Raster} of image data.The number and types of bands in the {@link SampleModel} of theRaster must match the number and types required by the ColorModel to represent its color and alpha components. All BufferedImage objects have an upper left corner coordinate of (0, 0). Any Raster used to construct a BufferedImage must therefore have minX=0 and minY=0.
This class relies on the data fetching and setting methods of Raster, and on the color characterization methods of ColorModel. @see ColorModel @see Raster @see WritableRaster

    }


    protected RenderedImage getIndexedImage() {
        IndexColorModel icm = getIndexColorModel();


        BufferedImage dst =
            new BufferedImage(src.getWidth(), src.getHeight(),
                              BufferedImage.TYPE_BYTE_INDEXED, icm);


        WritableRaster wr = dst.getRaster();
        for (int y =0; y < dst.getHeight(); y++) {
            for (int x = 0; x < dst.getWidth(); x++) {
                Color aColor = getSrcColor(x,y);
                wr.setSample(x, y, 0, findColorIndex(root, aColor));
            }
        }

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            // If the image has BITMASK transparency, we need to make sure
            // it gets converted to 32-bit ARGB, because the JPEG encoder
            // relies upon the full 8-bit alpha channel.
            boolean forceARGB =
                (indexCM.getTransparency() != Transparency.OPAQUE);
            BufferedImage temp = indexCM.convertToIntDiscrete(sourceLine,
                                                              forceARGB);
            sourceLine = temp.getRaster();
        } else {
            sourceLine = srcRas.createChild(sourceXOffset,
                                            sourceYOffset+y,
                                            sourceWidth, 1,
                                            0, 0,

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    BufferedImage getThumbnail(ImageInputStream iis,
                               int index,
                               JPEGImageReader reader) throws IOException {
        reader.thumbnailStarted(index);
        BufferedImage ret = null;
        if ((thumb != null) && (index == 0)) {
                ret = thumb.getThumbnail(iis, reader);
        } else {
            if (thumb != null) {
                index--;

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            if ((jfxx == null)
                || (jfxx.code == THUMB_PALETTE)) {
                writeJFXXSegment(index, thumb, ios, writer); // default
            } else {
                // Expand to RGB
                BufferedImage thumbRGB =
                    ((IndexColorModel) cm).convertToIntDiscrete
                    (thumb.getRaster(), false);
                jfxx.setThumbnail(thumbRGB);
                writer.thumbnailStarted(index);
                jfxx.write(ios, writer);  // Handles clipping if needed
                writer.thumbnailComplete();
            }
        } else if (cs.getType() == ColorSpace.TYPE_RGB) {
            if (jfxx == null) {
                if (onlyOne) {
                    write(ios, thumb, writer); // As part of the header
                } else {
                    writeJFXXSegment(index, thumb, ios, writer); // default
                }
            } else {
                // If this is the only one, write the header first
                if (onlyOne) {
                    write(ios, writer);
                }
                if (jfxx.code == THUMB_PALETTE) {
                    writeJFXXSegment(index, thumb, ios, writer); // default
                    writer.warningOccurred
                        (JPEGImageWriter.WARNING_NO_RGB_THUMB_AS_INDEXED);
                } else {
                    jfxx.setThumbnail(thumb);
                    writer.thumbnailStarted(index);
                    jfxx.write(ios, writer);  // Handles clipping if needed
                    writer.thumbnailComplete();
                }
            }
        } else if (cs.getType() == ColorSpace.TYPE_GRAY) {
            if (jfxx == null) {
                if (onlyOne) {
                    BufferedImage thumbRGB = expandGrayThumb(thumb);
                    write(ios, thumbRGB, writer); // As part of the header
                } else {
                    writeJFXXSegment(index, thumb, ios, writer); // default
                }
            } else {
                // If this is the only one, write the header first
                if (onlyOne) {
                    write(ios, writer);
                }
                if (jfxx.code == THUMB_RGB) {
                    BufferedImage thumbRGB = expandGrayThumb(thumb);
                    writeJFXXSegment(index, thumbRGB, ios, writer);
                } else if (jfxx.code == THUMB_JPEG) {
                    jfxx.setThumbnail(thumb);
                    writer.thumbnailStarted(index);
                    jfxx.write(ios, writer);  // Handles clipping if needed

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    /**
     * Return an RGB image that is the expansion of the given grayscale
     * image.
     */
    private static BufferedImage expandGrayThumb(BufferedImage thumb) {
        BufferedImage ret = new BufferedImage(thumb.getWidth(),
                                              thumb.getHeight(),
                                              BufferedImage.TYPE_INT_RGB);
        Graphics g = ret.getGraphics();
        g.drawImage(thumb, 0, 0, null);
        return ret;
    }

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            ColorModel cm = new ComponentColorModel(JPEG.sRGB,
                                                    false,
                                                    false,
                                                    ColorModel.OPAQUE,
                                                    DataBuffer.TYPE_BYTE);
            return new BufferedImage(cm,
                                     raster,
                                     false,
                                     null);
        }

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                                                     false);
            SampleModel sm = cm.createCompatibleSampleModel(thumbWidth,
                                                            thumbHeight);
            WritableRaster raster =
                Raster.createWritableRaster(sm, buffer, null);
            return new BufferedImage(cm,
                                     raster,
                                     false,
                                     null);
        }

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            iis.seek(streamPos);
            JPEGImageReader thumbReader = new JPEGImageReader(null);
            thumbReader.setInput(iis);
            thumbReader.addIIOReadProgressListener
                (new ThumbnailReadListener(reader));
            BufferedImage ret = thumbReader.read(0, null);
            thumbReader.dispose();
            iis.reset();
            return ret;
        }

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