Example usage for javax.imageio ImageTypeSpecifier createFromBufferedImageType

Introduction

In this page you can find the example usage for javax.imageio ImageTypeSpecifier createFromBufferedImageType.

Prototype

public static ImageTypeSpecifier createFromBufferedImageType(int bufferedImageType) 

Source Link

Document

Returns an ImageTypeSpecifier that encodes one of the standard BufferedImage types (other than TYPE_CUSTOM ).

Usage

From source file:com.sketchy.utils.image.SketchyImage.java

public static void save(SketchyImage sketchyImage, File file) throws Exception {
    if (!file.getParentFile().canWrite()) {
        throw new Exception("Can not write to File: " + file.getPath() + "!");
    }/*from w ww  .java2s  .  c o  m*/

    if (!StringUtils.endsWithIgnoreCase(file.getName(), ".png")) {
        throw new Exception("Can not save SketchyImage! Must be a .png file!");
    }

    Iterator<ImageWriter> imageWriters = ImageIO.getImageWritersByFormatName("png");
    ImageWriter imageWriter = null;
    if (imageWriters.hasNext()) { // Just get first one
        imageWriter = imageWriters.next();
    }
    if (imageWriter == null) {
        // this should never happen!! if so.. we got problems
        throw new Exception("Can not find ImageReader for .png Files!");
    }

    ImageOutputStream os = null;
    try {
        os = ImageIO.createImageOutputStream(file);
        imageWriter.setOutput(os);

        ImageWriteParam imageWriterParam = imageWriter.getDefaultWriteParam();
        IIOMetadata metadata = imageWriter.getDefaultImageMetadata(
                ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_BYTE_BINARY),
                imageWriterParam);

        String metaDataFormatName = metadata.getNativeMetadataFormatName();
        IIOMetadataNode metaDataNode = (IIOMetadataNode) metadata.getAsTree(metaDataFormatName);

        NodeList childNodes = metaDataNode.getElementsByTagName("pHYs");
        IIOMetadataNode physNode = null;
        if (childNodes.getLength() == 0) {
            physNode = new IIOMetadataNode("pHYs");
            physNode.setAttribute("pixelsPerUnitXAxis",
                    Integer.toString((int) Math.ceil(sketchyImage.dotsPerMillimeterWidth * 1000)));
            physNode.setAttribute("pixelsPerUnitYAxis",
                    Integer.toString((int) Math.ceil(sketchyImage.dotsPerMillimeterHeight * 1000)));
            physNode.setAttribute("unitSpecifier", "meter"); // always meter
            metaDataNode.appendChild(physNode);
        } else {
            for (int nodeIdx = 0; nodeIdx < childNodes.getLength(); nodeIdx++) {
                physNode = (IIOMetadataNode) childNodes.item(nodeIdx);
                physNode.setAttribute("pixelsPerUnitXAxis",
                        Integer.toString((int) Math.ceil(sketchyImage.dotsPerMillimeterWidth * 1000)));
                physNode.setAttribute("pixelsPerUnitYAxis",
                        Integer.toString((int) Math.ceil(sketchyImage.dotsPerMillimeterHeight * 1000)));
                physNode.setAttribute("unitSpecifier", "meter"); // always meter
                metaDataNode.appendChild(physNode);
            }
        }
        metadata.setFromTree(metaDataFormatName, metaDataNode);
        imageWriter.write(new IIOImage(sketchyImage.image, null, metadata));
        os.flush();
    } catch (Exception e) {
        throw new Exception("Error Saving SketchyImage File: " + file.getPath() + "!  " + e.getMessage());
    } finally {
        IOUtils.closeQuietly(os);
    }
}

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From source file:eu.europa.esig.dss.pades.signature.visible.ImageFactory.java

private static InputStream convertToInputStream(BufferedImage buffImage, int dpi) throws IOException {
    Iterator<ImageWriter> it = ImageIO.getImageWritersByFormatName("jpeg");
    if (!it.hasNext()) {
        throw new DSSException("No writer for JPEG found");
    }/*from  w  ww  . ja v a 2s  . com*/
    ImageWriter writer = it.next();

    JPEGImageWriteParam jpegParams = (JPEGImageWriteParam) writer.getDefaultWriteParam();
    jpegParams.setCompressionMode(JPEGImageWriteParam.MODE_EXPLICIT);
    jpegParams.setCompressionQuality(1);

    ImageTypeSpecifier typeSpecifier = ImageTypeSpecifier
            .createFromBufferedImageType(BufferedImage.TYPE_INT_RGB);
    IIOMetadata metadata = writer.getDefaultImageMetadata(typeSpecifier, jpegParams);

    initDpi(metadata, dpi);

    ByteArrayOutputStream os = new ByteArrayOutputStream();
    ImageOutputStream imageOs = ImageIO.createImageOutputStream(os);
    writer.setOutput(imageOs);
    writer.write(metadata, new IIOImage(buffImage, null, metadata), jpegParams);

    InputStream is = new ByteArrayInputStream(os.toByteArray());
    return is;
}

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From source file:org.forgerock.doc.maven.PNGUtils.java

private static void saveBufferedImage(final BufferedImage bufferedImage, final File outputFile,
        final int dotsPerInch) throws IOException {
    for (Iterator<ImageWriter> iw = ImageIO.getImageWritersByFormatName("png"); iw.hasNext();) {
        ImageWriter writer = iw.next();
        ImageWriteParam writeParam = writer.getDefaultWriteParam();
        ImageTypeSpecifier typeSpecifier = ImageTypeSpecifier
                .createFromBufferedImageType(BufferedImage.TYPE_INT_RGB);
        IIOMetadata metadata = writer.getDefaultImageMetadata(typeSpecifier, writeParam);
        if (metadata.isReadOnly() || !metadata.isStandardMetadataFormatSupported()) {
            continue;
        }// w ww.j  a v a  2s  . c om

        setDPI(metadata, dotsPerInch);

        final ImageOutputStream stream = ImageIO.createImageOutputStream(outputFile);
        try {
            writer.setOutput(stream);
            writer.write(metadata, new IIOImage(bufferedImage, null, metadata), writeParam);
        } finally {
            stream.close();
        }
        break;
    }
}

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