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

Example 46 with IIOImage

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

the class WriteProgressive method main.

public static void main(String[] args) throws IOException {
    Iterator witer = ImageIO.getImageWritersByFormatName("png");
    ImageWriter w = (ImageWriter) witer.next();
    File f = File.createTempFile("WriteProgressive", ".png");
    ImageOutputStream ios = ImageIO.createImageOutputStream(f);
    w.setOutput(ios);
    BufferedImage bi = new BufferedImage(100, 100, BufferedImage.TYPE_3BYTE_BGR);
    Graphics2D g = bi.createGraphics();
    Random r = new Random(10);
    for (int i = 0; i < 10000; i++) {
        Color c = new Color(r.nextInt(256), r.nextInt(256), r.nextInt(256));
        g.setColor(c);
        g.fillRect(r.nextInt(100), r.nextInt(100), 1, 1);
    }
    IIOImage iioimage = new IIOImage(bi, null, null);
    ImageWriteParam param = w.getDefaultWriteParam();
    param.setProgressiveMode(ImageWriteParam.MODE_DEFAULT);
    try {
        w.write(null, iioimage, param);
    } catch (NullPointerException npe) {
        throw new RuntimeException("Got NPE during write!");
    }
    ios.close();
    BufferedImage bi2 = ImageIO.read(f);
    f.delete();
    ImageCompare.compare(bi, bi2);
}

Example 47 with IIOImage

use of javax.imageio.IIOImage in project vcell by virtualcell.

the class ITextWriter method encodeJPEG.

public static ByteArrayOutputStream encodeJPEG(BufferedImage bufferedImage) throws Exception {
    ImageWriter imageWriter = ImageIO.getImageWritersBySuffix("jpeg").next();
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    ImageOutputStream imageOutputStream = ImageIO.createImageOutputStream(byteArrayOutputStream);
    imageWriter.setOutput(imageOutputStream);
    ImageWriteParam imageWriteParam = imageWriter.getDefaultWriteParam();
    imageWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    // quality 0(very compressed, lossy) -> 1.0(less compressed,loss-less)
    imageWriteParam.setCompressionQuality(1.0f);
    IIOImage iioImage = new IIOImage(bufferedImage, null, null);
    imageWriter.write(null, iioImage, imageWriteParam);
    imageOutputStream.close();
    imageWriter.dispose();
    return byteArrayOutputStream;
}