Examples of IIOMetadata

ae.javax.imageio.metadata.IIOMetadata
An abstract class to be extended by objects that represent metadata (non-image data) associated with images and streams. Plug-ins represent metadata using opaque, plug-in specific objects. These objects, however, provide the ability to access their internal information as a tree of IIOMetadataNode objects that support the XML DOM interfaces as well as additional interfaces for storing non-textual data and retrieving information about legal data values. The format of such trees is plug-in dependent, but plug-ins may choose to support a plug-in neutral format described below. A single plug-in may support multiple metadata formats, whose names maybe determined by calling getMetadataFormatNames. The plug-in may also support a single special format, referred to as the "native" format, which is designed to encode its metadata losslessly. This format will typically be designed specifically to work with a specific file format, so that images may be loaded and saved in the same format with no loss of metadata, but may be less useful for transfering metadata between an ImageReader and an ImageWriter for different image formats. To convert between two native formats as losslessly as the image file formats will allow, an ImageTranscoder object must be used. @see ae.javax.imageio.ImageReader#getImageMetadata @see ae.javax.imageio.ImageReader#getStreamMetadata @see ae.javax.imageio.ImageReader#readAll @see ae.javax.imageio.ImageWriter#getDefaultStreamMetadata @see ae.javax.imageio.ImageWriter#getDefaultImageMetadata @see ae.javax.imageio.ImageWriter#write @see ae.javax.imageio.ImageWriter#convertImageMetadata @see ae.javax.imageio.ImageWriter#convertStreamMetadata @see ae.javax.imageio.IIOImage @see ae.javax.imageio.ImageTranscoder
com.google.code.appengine.imageio.metadata.IIOMetadata
javax.imageio.metadata.IIOMetadata
@author Rustem V. Rafikov @version $Revision: 1.3 $TODO add all the methods from the spec

Examples of javax.imageio.metadata.IIOMetadata

    {
        Iterator readers = ImageIO.getImageReadersBySuffix("tiff");
        ImageReader reader = (ImageReader) readers.next();
        ImageInputStream iis = ImageIO.createImageInputStream(new File(filename));
        reader.setInput(iis);
        IIOMetadata imageMetadata = reader.getImageMetadata(0);
        Element root = (Element) imageMetadata.getAsTree(STANDARD_METADATA_FORMAT);
        Element comprElement = (Element) root.getElementsByTagName("Compression").item(0);
        Node comprTypeNode = comprElement.getElementsByTagName("CompressionTypeName").item(0);
        String actualCompression = comprTypeNode.getAttributes().getNamedItem("value").getNodeValue();
        assertEquals("Incorrect TIFF compression in file " + filename, expectedCompression, actualCompression);
        iis.close();

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Examples of javax.imageio.metadata.IIOMetadata

            jpegParam.setCompressionMode(JPEGImageWriteParam.MODE_EXPLICIT);
            jpegParam.setCompressionQuality(quality);


            // add metadata
            ImageTypeSpecifier imageTypeSpecifier = new ImageTypeSpecifier(image);
            IIOMetadata data = imageWriter.getDefaultImageMetadata(imageTypeSpecifier, jpegParam);
            Element tree = (Element)data.getAsTree("javax_imageio_jpeg_image_1.0");
            Element jfif = (Element)tree.getElementsByTagName("app0JFIF").item(0);
            jfif.setAttribute("Xdensity", Integer.toString(dpi));
            jfif.setAttribute("Ydensity", Integer.toString(dpi));
            jfif.setAttribute("resUnits", "1"); // 1 = dots/inch

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Examples of javax.imageio.metadata.IIOMetadata


        try {
            imageWriter.setOutput(outputStream);


            ImageWriteParam defaultImageWriteParam = imageWriter.getDefaultWriteParam();
            IIOMetadata imageMetaData = imageWriter.getDefaultImageMetadata(
                ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB), defaultImageWriteParam);
            String metaFormatName = imageMetaData.getNativeMetadataFormatName();
            Node root = imageMetaData.getAsTree(metaFormatName);
            IIOMetadataNode graphicsControlExtensionNode = (IIOMetadataNode) getOrCreateChild(root, "GraphicControlExtension");


            // http://java.sun.com/javase/6/docs/api/javax/imageio/metadata/doc-files/gif_metadata.html
            graphicsControlExtensionNode.setAttribute("disposalMethod", "none");
            graphicsControlExtensionNode.setAttribute("userInputFlag", "FALSE");
            graphicsControlExtensionNode.setAttribute("transparentColorFlag", "FALSE");
            graphicsControlExtensionNode.setAttribute("delayTime", Integer.toString(userResource.getFrameDelay() / 100));
            graphicsControlExtensionNode.setAttribute("transparentColorIndex", "0");


            Node applicationExtensionsNode = getOrCreateChild(root, "ApplicationExtensions");
            IIOMetadataNode netscapeExtension = new IIOMetadataNode("ApplicationExtension");


            netscapeExtension.setAttribute("applicationID", "NETSCAPE");
            netscapeExtension.setAttribute("authenticationCode", "2.0");


            byte numLoops = (byte) (userResource.isLooped() ? 0x0 : 0x1);


            netscapeExtension.setUserObject(new byte[] { 0x1, numLoops, 0x0 });
            applicationExtensionsNode.appendChild(netscapeExtension);
            imageMetaData.setFromTree(metaFormatName, root);


            imageWriter.prepareWriteSequence(null);


            userResource.startFramesSequence();

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Examples of javax.imageio.metadata.IIOMetadata

                        {
                            writerParams.setCompressionType(writerParams.getCompressionTypes()[0]);
                        }
                        writerParams.setCompressionQuality(quality);
                    }
                    IIOMetadata meta = createMetadata( image, imageWriter, writerParams, resolution);
                    imageWriter.setOutput( output );
                    imageWriter.write( null, new IIOImage( image, null, meta ), writerParams );
                    foundWriter = true;
                }
                catch( IIOException io )

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Examples of javax.imageio.metadata.IIOMetadata

        }
        else
        {
            type = ImageTypeSpecifier.createFromRenderedImage( image );
        }
        IIOMetadata meta = imageWriter.getDefaultImageMetadata( type, writerParams );
        return (addResolution(meta, resolution) ? meta : null);
    }

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Examples of javax.imageio.metadata.IIOMetadata

                input.close();
                throw new RuntimeException("No ImageReaders found");
            }
            reader = (ImageReader) readers.next();
            reader.setInput(input);
            IIOMetadata meta = reader.getImageMetadata(0);
            if (meta != null)
            {
                Node tree = meta.getAsTree("javax_imageio_jpeg_image_1.0");
                NodeList children = tree.getChildNodes();
                for (int i=0;i<children.getLength();i++)
                {
                    Node markerSequence = children.item(i);
                    if ("markerSequence".equals(markerSequence.getNodeName()))

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Examples of javax.imageio.metadata.IIOMetadata

     * exif:PixelXDimension, and exif:PixelYDimension.
     * @return the image dimension in pixels or <code>null</code>
     **/
    @Override
    public Dimension readJPEGDimension(File jpeg)  throws IOException, ParseException{
        IIOMetadata meta = readMetadata(jpeg);
        Dimension result = (new JpegHeader(meta)).getImageDimension();
        if(result == null){
            ByteBuffer xmpBytes = getXMPBytes(meta);
            CharBuffer xmpChars = getXMPChars(xmpBytes);
            XMPProperties xmp = null;

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Examples of javax.imageio.metadata.IIOMetadata

        }
        /* Read the input image meta-data */
        InputStream is = new BufferedInputStream(new FileInputStream(jpeg));
        ImageInputStream iis = ImageIO.createImageInputStream(is);
        reader.setInput(iis);
        IIOMetadata meta = reader.getImageMetadata(0);
        iis.close();
        is.close(); //must do this, otherwise file remains open
        return meta;
    }

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Examples of javax.imageio.metadata.IIOMetadata

                RenderedOp op = (RenderedOp) it.next();
                // for some reason this method occasinally returns an Object
                // i.e. not an IIOMetadata instance
                Object imageMetaObj = op.getProperty("JAI.ImageMetadata");
                if (imageMetaObj instanceof IIOMetadata) {
                    IIOMetadata imageMeta =  (IIOMetadata) imageMetaObj;
                    if (imageMeta != null && imageMeta.isStandardMetadataFormatSupported()) {
                        Node root = imageMeta.getAsTree("javax_imageio_1.0");
                        Node dimension = getChildByLocalName(root, "Dimension");
                        Node minXNode = null;
                        Node minYNode = null;
                        if (dimension != null) {
                            minXNode = getChildByLocalName(

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Examples of javax.imageio.metadata.IIOMetadata

        }


        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

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