Package javax.imageio

Examples of javax.imageio.ImageWriteParam

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        // /////////////////////////////////////////////////////////////////
        //
        // Compression is available only on native lib
        //
        // /////////////////////////////////////////////////////////////////
        final ImageWriteParam iwp = writer.getDefaultWriteParam();

        if (writer.getClass().getName()
                      .equals("com.sun.media.imageioimpl.plugins.png.CLibPNGImageWriter")) {
            iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);

            iwp.setCompressionQuality(0.75f); // we can control quality here
        }

        writer.setOutput(memOutStream);
        writer.write(null, new IIOImage(finalImage, null, null), iwp);
        memOutStream.flush();
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            ios = ImageIO.createImageOutputStream(file);
            writer.setOutput(ios);

            // Set JPEG compression quality to 95%.

            ImageWriteParam iwp = writer.getDefaultWriteParam();
            iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            iwp.setCompressionQuality(0.95f);

            // Write the image.

            writer.write(null,
                    new IIOImage((BufferedImage) imageArea.getImage(), null, null),
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                Graphics2D g3 = scaled.createGraphics();
                g3.drawImage(img, 0, 0, img.getWidth(null), img.getHeight(null), null);
                g3.dispose();

                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                ImageWriteParam iwparam = new JPEGImageWriteParam(Locale.getDefault());
                iwparam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
                iwparam.setCompressionQuality(jpegQuality);//Set here your compression rate
                ImageWriter iw = ImageIO.getImageWritersByFormatName("jpg").next();
                ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
                iw.setOutput(ios);
                iw.write(null, new IIOImage(scaled, null, null), iwparam);
                iw.dispose();
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        ImageWriter writer = (ImageWriter) it.next();
        ImageOutputStream ioutstream = null;

        IIOMetadata meta = writer.getDefaultStreamMetadata(writer.getDefaultWriteParam());
        ImageWriteParam param = writer.getDefaultWriteParam();

        // DJB: jpeg does not support ARGB (alpha) colour
        //      this converts the image from ARGB to RGB
        // TODO: make this more abstract - it should be smarter for more image
        //       writer types (Ie. ask the writer what it supports)
        //       Alternately, make a jpeg writer and png writer, as these are
        //       mostly what we get from jai!
        if (format.equalsIgnoreCase("image/jpeg")) {
            param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            param.setCompressionQuality(0.9f); // DJB: only do this for jpegs - png freaks when you do this!

            meta = writer.getDefaultStreamMetadata(param);

            //           WritableRaster raster = image.getRaster();
            //           WritableRaster newRaster = raster.createWritableChild(0, 0, image.getWidth(), image.getHeight(), 0, 0, new int[] {0, 1, 2});
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        iiowriter.addIIOWriteWarningListener(this);
       
        ImageOutputStream imgout = ImageIO.createImageOutputStream(out);
        try {
           
            ImageWriteParam iwParam = getDefaultWriteParam(iiowriter, image, params);
           
            ImageTypeSpecifier type;
            if (iwParam.getDestinationType() != null) {
                type = iwParam.getDestinationType();
            } else {
                type = ImageTypeSpecifier.createFromRenderedImage(image);
            }
           
            //Handle metadata
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     * @return the IIO ImageWriteParam instance
     */
    protected ImageWriteParam getDefaultWriteParam(
            javax.imageio.ImageWriter iiowriter, RenderedImage image,
            ImageWriterParams params) {
        ImageWriteParam param = iiowriter.getDefaultWriteParam();
        //System.err.println("Param: " + params);
        if ((params != null) && (params.getCompressionMethod() != null)) {
            param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            param.setCompressionType(params.getCompressionMethod());
        }
        return param;
    }
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        public void writeImage(RenderedImage image, ImageWriterParams params) throws IOException {
            if (iiowriter == null) {
                throw new IllegalStateException("MultiImageWriter already closed!");
            }
            ImageWriteParam iwParam = getDefaultWriteParam(iiowriter, image, params);
           
            ImageTypeSpecifier type;
            if (iwParam.getDestinationType() != null) {
                type = iwParam.getDestinationType();
            } else {
                type = ImageTypeSpecifier.createFromRenderedImage(image);
            }
           
            //Handle metadata
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                }
                break;
            }
            case JPG: {
                ImageWriter iw = ImageIO.getImageWritersByMIMEType("image/jpeg").next();
                ImageWriteParam iwParam = iw.getDefaultWriteParam();
                iwParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
                iwParam.setCompressionQuality(quality);
                MemoryCacheImageOutputStream imgOut = new MemoryCacheImageOutputStream(videoFrameChunk.getOutputStream());
                iw.setOutput(imgOut);
                IIOImage img = new IIOImage(image, null, null);
                iw.write(null, img, iwParam);
                iw.dispose();
                break;
            }
            case PNG:
            default: {
                ImageWriter iw = ImageIO.getImageWritersByMIMEType("image/png").next();
                ImageWriteParam iwParam = iw.getDefaultWriteParam();
                MemoryCacheImageOutputStream imgOut = new MemoryCacheImageOutputStream(videoFrameChunk.getOutputStream());
                iw.setOutput(imgOut);
                IIOImage img = new IIOImage(image, null, null);
                iw.write(null, img, iwParam);
                iw.dispose();
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     * parameter settings into account.
     */
    private static void computeRegions(Rectangle sourceBounds,
                                       Dimension destSize,
                                       ImageWriteParam p) {
        ImageWriteParam param;
        int periodX = 1;
        int periodY = 1;
        if (p != null) {
            int[] sourceBands = p.getSourceBands();
            if (sourceBands != null &&
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     * parameter settings into account.
     */
    private static void computeRegions(Rectangle sourceBounds,
                                       Dimension destSize,
                                       ImageWriteParam p) {
        ImageWriteParam param;
        int periodX = 1;
        int periodY = 1;
        if (p != null) {
            int[] sourceBands = p.getSourceBands();
            if (sourceBands != null &&
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