Example usage for javax.imageio ImageWriteParam setDestinationType

Introduction

In this page you can find the example usage for javax.imageio ImageWriteParam setDestinationType.

Prototype

public void setDestinationType(ImageTypeSpecifier destinationType) 

Source Link

Document

Sets the desired image type for the destination image, using an ImageTypeSpecifier .

Usage

From source file:ImageUtil.java

/**
 * store BufferedImage to file//from  w w  w .  jav a 2 s .  com
 * @param image BufferedImage
 * @param outputFile output image file
 * @param quality quality of output image
 * @return true success, else fail
 */
public static boolean storeImage(BufferedImage image, File outputFile, float quality) {
    try {
        //reconstruct folder structure for image file output
        if (outputFile.getParentFile() != null && !outputFile.getParentFile().exists()) {
            outputFile.getParentFile().mkdirs();
        }
        if (outputFile.exists()) {
            outputFile.delete();
        }
        //get image file suffix
        String extName = "png";
        //get registry ImageWriter for specified image suffix
        Iterator writers = ImageIO.getImageWritersByFormatName(extName);
        ImageWriter imageWriter = (ImageWriter) writers.next();
        //set image output params
        ImageWriteParam params = new JPEGImageWriteParam(null);
        params.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        params.setCompressionQuality(quality);
        params.setProgressiveMode(javax.imageio.ImageWriteParam.MODE_DISABLED);
        params.setDestinationType(new ImageTypeSpecifier(IndexColorModel.getRGBdefault(),
                IndexColorModel.getRGBdefault().createCompatibleSampleModel(16, 16)));
        //writer image to file
        ImageOutputStream imageOutputStream = ImageIO.createImageOutputStream(outputFile);
        imageWriter.setOutput(imageOutputStream);
        imageWriter.write(null, new IIOImage(image, null, null), params);
        imageOutputStream.close();
        imageWriter.dispose();
        return true;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return false;
}

---

From source file:org.gallery.web.controller.ImageController.java

public static boolean compressImg(BufferedImage src, File outfile, double d) {
    FileOutputStream out = null;//from ww w  . ja v  a  2 s  .  co  m
    ImageWriter imgWrier;
    ImageWriteParam imgWriteParams;

    // ? jpg
    imgWrier = ImageIO.getImageWritersByFormatName("jpg").next();
    imgWriteParams = new javax.imageio.plugins.jpeg.JPEGImageWriteParam(null);
    // ??MODE_EXPLICIT
    imgWriteParams.setCompressionMode(imgWriteParams.MODE_EXPLICIT);
    // ?qality?0~1
    imgWriteParams.setCompressionQuality((float) d);
    imgWriteParams.setProgressiveMode(imgWriteParams.MODE_DISABLED);
    ColorModel colorModel = ColorModel.getRGBdefault();
    // ?
    imgWriteParams.setDestinationType(
            new javax.imageio.ImageTypeSpecifier(colorModel, colorModel.createCompatibleSampleModel(16, 16)));

    try {
        out = new FileOutputStream(outfile);
        imgWrier.reset();
        //  out?write, ImageOutputStream?
        // OutputStream
        imgWrier.setOutput(ImageIO.createImageOutputStream(out));
        // write???
        imgWrier.write(null, new IIOImage(src, null, null), imgWriteParams);
        out.flush();
        out.close();
    } catch (Exception e) {
        e.printStackTrace();
        return false;
    }
    return true;
}

---

From source file:org.apache.flex.compiler.internal.embedding.transcoders.JPEGTranscoder.java

private byte[] bufferedImageToJPEG(ImageInfo imageInfo, int[] pixels) throws Exception {
    BufferedImage bufferedImage = new BufferedImage(imageInfo.width, imageInfo.height,
            BufferedImage.TYPE_INT_ARGB);
    bufferedImage.setRGB(0, 0, imageInfo.width, imageInfo.height, pixels, 0, imageInfo.width);

    ImageWriter writer = ImageIO.getImageWritersByFormatName("jpeg").next();
    ImageWriteParam writeParam = writer.getDefaultWriteParam();
    ColorModel colorModel = new DirectColorModel(24, 0x00ff0000, 0x0000ff00, 0x000000ff);
    ImageTypeSpecifier imageTypeSpecifier = new ImageTypeSpecifier(colorModel,
            colorModel.createCompatibleSampleModel(1, 1));
    writeParam.setDestinationType(imageTypeSpecifier);
    writeParam.setSourceBands(new int[] { 0, 1, 2 });
    writeParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);

    float q = 1.0f;
    if (quality != null)
        q = quality.floatValue();//from   ww  w . ja  v  a  2  s  .com
    writeParam.setCompressionQuality(q);

    DAByteArrayOutputStream buffer = new DAByteArrayOutputStream();
    writer.setOutput(new MemoryCacheImageOutputStream(buffer));

    IIOImage ioImage = new IIOImage(bufferedImage, null, null);

    writer.write(null, ioImage, writeParam);
    writer.dispose();

    return buffer.getDirectByteArray();
}

---

From source file:org.polymap.core.data.image.ImageEncodeProcessor.java

private void imageioEncodeJPEG(Image image, ChunkedResponseOutputStream out) throws IOException {
    // this code is from http://forums.sun.com/thread.jspa?threadID=5197061
    ImageWriter writer = ImageIO.getImageWritersByFormatName("jpeg").next();
    ImageWriteParam param = writer.getDefaultWriteParam();
    param.setSourceBands(new int[] { 0, 1, 2 });
    ColorModel cm = new DirectColorModel(24, 0x00ff0000, // Red
            0x0000ff00, // Green
            0x000000ff, // Blue
            0x0); // Alpha
    param.setDestinationType(new ImageTypeSpecifier(cm, cm.createCompatibleSampleModel(1, 1)));

    ImageOutputStream imageOut = ImageIO.createImageOutputStream(out);
    writer.setOutput(imageOut);//w ww .ja  v  a2s  .co  m
    writer.write(null, new IIOImage((RenderedImage) image, null, null), param);
    writer.dispose();
    imageOut.close();
}

---