Java Code Examples for javax.imageio.IIOImage#getMetadata()

The following examples show how to use javax.imageio.IIOImage#getMetadata() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ITXtTest.java    From dragonwell8_jdk with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 2
Source File: ITXtTest.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 3
Source File: ITXtTest.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 4
Source File: ITXtTest.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 5
Source File: ITXtTest.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 6
Source File: ITXtTest.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try (ImageInputStream imageInputStream =
            ImageIO.createImageInputStream(f)) {

        ImageReader r = ImageIO.getImageReaders(imageInputStream).next();
        r.setInput(imageInputStream);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 7
Source File: ITXtTest.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 8
Source File: ITXtTest.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 9
Source File: ITXtTest.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 10
Source File: ITXtTest.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 11
Source File: ITXtTest.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 12
Source File: ITXtTest.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 13
Source File: ITXtTest.java    From jdk8u-dev-jdk with GNU General Public License v2.0 6 votes vote down vote up 
private static ITXtTest readFrom(File f) {
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(f);
        ImageReader r = ImageIO.getImageReaders(iis).next();
        r.setInput(iis);

        IIOImage dst = r.readAll(0, null);

        // look for iTXt node
        IIOMetadata m = dst.getMetadata();
        Node root = m.getAsTree(m.getNativeMetadataFormatName());
        Node n = root.getFirstChild();
        while (n != null && !"iTXt".equals(n.getNodeName())) {
            n = n.getNextSibling();
        }
        if (n == null) {
            throw new RuntimeException("No iTXt node!");
        }
        ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
        return t;
    } catch (Throwable e) {
        throw new RuntimeException("Reading test failed.", e);
    }
}
Example 14
Source File: ImageIOHelper.java    From tess4j with Apache License 2.0 5 votes vote down vote up 
/**
 * Reads image meta data.
 *
 * @param oimage
 * @return a map of meta data
 */
public static Map<String, String> readImageData(IIOImage oimage) {
    Map<String, String> dict = new HashMap<String, String>();

    IIOMetadata imageMetadata = oimage.getMetadata();
    if (imageMetadata != null) {
        IIOMetadataNode dimNode = (IIOMetadataNode) imageMetadata.getAsTree("javax_imageio_1.0");
        NodeList nodes = dimNode.getElementsByTagName("HorizontalPixelSize");
        int dpiX;
        if (nodes.getLength() > 0) {
            float dpcWidth = Float.parseFloat(nodes.item(0).getAttributes().item(0).getNodeValue());
            dpiX = (int) Math.round(25.4f / dpcWidth);
        } else {
            dpiX = Toolkit.getDefaultToolkit().getScreenResolution();
        }
        dict.put("dpiX", String.valueOf(dpiX));

        nodes = dimNode.getElementsByTagName("VerticalPixelSize");
        int dpiY;
        if (nodes.getLength() > 0) {
            float dpcHeight = Float.parseFloat(nodes.item(0).getAttributes().item(0).getNodeValue());
            dpiY = (int) Math.round(25.4f / dpcHeight);
        } else {
            dpiY = Toolkit.getDefaultToolkit().getScreenResolution();
        }
        dict.put("dpiY", String.valueOf(dpiY));
    }

    return dict;
}