Examples with ImageWriteParam javax.imageio.ImageWriteParam used on opensource projects

Example 36 with ImageWriteParam

use of javax.imageio.ImageWriteParam in project screenbird by adamhub.

the class Frame method writeJPEG.

/** Writes a JPEG image to a given OutputStream
     * 
     * @param bi an image
     * @param quality the quality (between zero and one)
     * @return the amount of bytes written
     */
protected static long writeJPEG(OutputStream out, BufferedImage bi, float quality) throws IOException {
    MeasuredOutputStream mOut = new MeasuredOutputStream(out);
    MemoryCacheImageOutputStream iOut = null;
    iOut = new MemoryCacheImageOutputStream(mOut);
    ImageWriter iw = (ImageWriter) ImageIO.getImageWritersByMIMEType("image/jpeg").next();
    ImageWriteParam iwParam = iw.getDefaultWriteParam();
    iwParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    iwParam.setCompressionQuality(quality);
    iw.setOutput(iOut);
    IIOImage img = new IIOImage(bi, null, null);
    iw.write(null, img, iwParam);
    return mOut.getBytesWritten();
}

Example 37 with ImageWriteParam

use of javax.imageio.ImageWriteParam in project spring-framework by spring-projects.

the class BufferedImageHttpMessageConverter method writeInternal.

private void writeInternal(BufferedImage image, MediaType contentType, OutputStream body) throws IOException, HttpMessageNotWritableException {
    ImageOutputStream imageOutputStream = null;
    ImageWriter imageWriter = null;
    try {
        Iterator<ImageWriter> imageWriters = ImageIO.getImageWritersByMIMEType(contentType.toString());
        if (imageWriters.hasNext()) {
            imageWriter = imageWriters.next();
            ImageWriteParam iwp = imageWriter.getDefaultWriteParam();
            process(iwp);
            imageOutputStream = createImageOutputStream(body);
            imageWriter.setOutput(imageOutputStream);
            imageWriter.write(null, new IIOImage(image, null, null), iwp);
        } else {
            throw new HttpMessageNotWritableException("Could not find javax.imageio.ImageWriter for Content-Type [" + contentType + "]");
        }
    } finally {
        if (imageWriter != null) {
            imageWriter.dispose();
        }
        if (imageOutputStream != null) {
            try {
                imageOutputStream.close();
            } catch (IOException ex) {
            // ignore
            }
        }
    }
}

Example 38 with ImageWriteParam

use of javax.imageio.ImageWriteParam in project jdk8u_jdk by JetBrains.

the class LUTCompareTest method createTestImage.

/* Create test image with two frames:
     *  1) with {red, red} palette
     *  2) with {blue, red } palette
     */
private static Image createTestImage() throws IOException {
    BufferedImage frame1 = createFrame(new int[] { 0xffff0000, 0xffff0000 });
    BufferedImage frame2 = createFrame(new int[] { 0xff0000ff, 0xffff0000 });
    ImageWriter writer = ImageIO.getImageWritersByFormatName("GIF").next();
    ImageOutputStream ios = ImageIO.createImageOutputStream(new File("lut_test.gif"));
    ImageWriteParam param = writer.getDefaultWriteParam();
    writer.setOutput(ios);
    writer.prepareWriteSequence(null);
    writer.writeToSequence(new IIOImage(frame1, null, null), param);
    writer.writeToSequence(new IIOImage(frame2, null, null), param);
    writer.endWriteSequence();
    writer.reset();
    writer.dispose();
    ios.flush();
    ios.close();
    return Toolkit.getDefaultToolkit().createImage("lut_test.gif");
}

Example 39 with ImageWriteParam

use of javax.imageio.ImageWriteParam in project jdk8u_jdk by JetBrains.

the class CompressionModeTest method doTest.

private static void doTest(int mode) {
    String fileFormat = "bmp";
    try {
        ImageWriter iw = (ImageWriter) ImageIO.getImageWritersBySuffix(fileFormat).next();
        if (iw == null) {
            throw new RuntimeException("No available image writer for " + fileFormat + " Test failed.");
        }
        File file = new File("image." + fileFormat);
        ImageOutputStream ios = ImageIO.createImageOutputStream(file);
        iw.setOutput(ios);
        BufferedImage bimg = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
        Graphics g = bimg.getGraphics();
        g.setColor(Color.green);
        g.fillRect(0, 0, 100, 100);
        ImageWriteParam param = iw.getDefaultWriteParam();
        param.setCompressionMode(mode);
        IIOMetadata meta = iw.getDefaultImageMetadata(new ImageTypeSpecifier(bimg), param);
        IIOImage iioImg = new IIOImage(bimg, null, meta);
        iw.write(null, iioImg, param);
    } catch (Exception e) {
        e.printStackTrace();
        throw new RuntimeException("Test failed.");
    }
}

Example 40 with ImageWriteParam

use of javax.imageio.ImageWriteParam in project jdk8u_jdk by JetBrains.

the class AnimationTest method main.

public static void main(String[] args) {
    try {
        AnimationTest t = new AnimationTest();
        t.initFrame();
        ImageWriter w = t.initWriter();
        ImageWriteParam p = w.getDefaultWriteParam();
        IIOMetadata streamMetadata = w.getDefaultStreamMetadata(p);
        w.prepareWriteSequence(streamMetadata);
        for (int i = 0; i < 50; i++) {
            BufferedImage f = t.createNextFrame();
            ImageTypeSpecifier type = new ImageTypeSpecifier(f);
            IIOMetadata m = w.getDefaultImageMetadata(type, p);
            w.writeToSequence(new IIOImage(f, null, m), p);
        }
        w.endWriteSequence();
        t.checkAnimation();
    } catch (Exception e) {
        throw new RuntimeException("Test failed.", e);
    }
}