javax.imageio.ImageReader#setInput

Source File: TruncatedImageWarningTest.java From openjdk-jdk8u with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws IOException {

        String sep = System.getProperty("file.separator");
        String dir = System.getProperty("test.src", ".");
        String filePath = dir+sep+fileName;
        System.out.println("Test file: " + filePath);
        File f = new File(filePath);
        ImageInputStream in = ImageIO.createImageInputStream(f);
        ImageReader reader = ImageIO.getImageReaders(in).next();
        TruncatedImageWarningTest twt = new TruncatedImageWarningTest();
        reader.addIIOReadWarningListener(twt);
        reader.setInput(in);
        reader.read(0);
        if (!twt.receivedWarning) {
            throw new RuntimeException("No expected warning");
        }
    }

Source File: SourceImage.java From screenstudio with GNU General Public License v3.0

6 votes

private BufferedImage[] readGif(File input) {
    BufferedImage[] images = new BufferedImage[0];
    try {
        ImageReader reader = ImageIO.getImageReadersByFormatName("gif").next();
        ImageInputStream stream = ImageIO.createImageInputStream(input);
        reader.setInput(stream);
        int count = reader.getNumImages(true);
        images = new BufferedImage[count];
        for (int index = 0; index < count; index++) {
            BufferedImage frame = reader.read(index);
            images[index] = new BufferedImage(mBounds.width, mBounds.height, mImageType);
            images[index].createGraphics().drawImage(frame.getScaledInstance(mBounds.width, mBounds.height, Image.SCALE_SMOOTH), 0, 0, null);
            data = ((DataBufferByte) images[index].getRaster().getDataBuffer()).getData();
        }
        mTimeDelay = 100;

    } catch (IOException ex) {

    }
    return images;
}

Source File: ImageLoadTwelveMonkeysTest.java From java-image-processing-survival-guide with Apache License 2.0

6 votes

/**
 * Load a multi-page TIFF image and split it into its individual pages.
 */
@Test
public void testExtractPagesFromMultiPageTiffCompression7() throws Exception {

    File sourceImageFile = getImageFile("tiff", "test-multi-rgb-compression-type-7.tiff");
    ImageInputStream is = ImageIO.createImageInputStream(sourceImageFile);

    // get the first matching reader
    Iterator<ImageReader> iterator = ImageIO.getImageReaders(is);
    ImageReader imageReader = iterator.next();
    imageReader.setInput(is);

    // split the multi-page TIFF
    int pages = imageReader.getNumImages(true);
    for (int i = 0; i < pages; i++) {
        BufferedImage bufferedImage = imageReader.read(i);
        assertValidBufferedImage(bufferedImage);
    }

    assertEquals("Expect to have 10 pages", 10, pages);
}

Source File: InputImageTests.java From openjdk-8-source with GNU General Public License v2.0

6 votes

public void runTest(Object ctx, int numReps) {
    final Context ictx = (Context)ctx;
    final ImageReader reader = ictx.reader;
    final boolean seekForwardOnly = ictx.seekForwardOnly;
    final boolean ignoreMetadata = ictx.ignoreMetadata;
    do {
        try {
            ImageInputStream iis = ictx.createImageInputStream();
            reader.setInput(iis, seekForwardOnly, ignoreMetadata);
            reader.read(0);
            reader.reset();
            iis.close();
            ictx.closeOriginalStream();
        } catch (IOException e) {
            e.printStackTrace();
        }
    } while (--numReps >= 0);
}

Source File: InputImageTests.java From jdk8u_jdk with GNU General Public License v2.0

6 votes

public void runTest(Object ctx, int numReps) {
    final Context ictx = (Context)ctx;
    final ImageReader reader = ictx.reader;
    final boolean seekForwardOnly = ictx.seekForwardOnly;
    final boolean ignoreMetadata = ictx.ignoreMetadata;
    do {
        try {
            ImageInputStream iis = ictx.createImageInputStream();
            reader.setInput(iis, seekForwardOnly, ignoreMetadata);
            reader.getImageMetadata(0);
            reader.reset();
            iis.close();
            ictx.closeOriginalStream();
        } catch (IOException e) {
            e.printStackTrace();
        }
    } while (--numReps >= 0);
}

Source File: Utils.java From skin-composer with MIT License

6 votes

public static boolean doesImageFitBox(FileHandle fileHandle, float width, float height) {
    boolean result = false;
    String suffix = fileHandle.extension();
    Iterator<ImageReader> iter = ImageIO.getImageReadersBySuffix(suffix);
    if (iter.hasNext()) {
        ImageReader reader = iter.next();
        try (var stream = new FileImageInputStream(fileHandle.file())) {
            reader.setInput(stream);
            int imageWidth = reader.getWidth(reader.getMinIndex());
            int imageHeight = reader.getHeight(reader.getMinIndex());
            result = imageWidth < width && imageHeight < height;
        } catch (IOException e) {
            Gdx.app.error(Utils.class.getName(), "error checking image dimensions", e);
        } finally {
            reader.dispose();
        }
    } else {
        Gdx.app.error(Utils.class.getName(), "No reader available to check image dimensions");
    }
    return result;
}

Source File: ITXtTest.java From TencentKona-8 with GNU General Public License v2.0

6 votes

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);
    }
}

Source File: MJPGImageReader.java From jpexs-decompiler with GNU General Public License v3.0

6 votes

/** Reads the image header.
 * Does nothing if the header has already been loaded.
 */
private void readHeader() throws IOException {
    if (image == null) {
        ImageReader r = new JPEGImageReader(getOriginatingProvider());
        Object in = getInput();
        /*if (in instanceof Buffer) {
            Buffer buffer = (Buffer) in;
            in=buffer.getData();
        }*/
        if (in instanceof byte[]) {
            r.setInput(new MemoryCacheImageInputStream(AVIBMPDIB.prependDHTSeg((byte[]) in)));
        } else if (in instanceof ImageInputStream) {
            r.setInput(AVIBMPDIB.prependDHTSeg((ImageInputStream) in));
        } else {
            r.setInput(AVIBMPDIB.prependDHTSeg((InputStream) in));
        }
        image = r.read(0);
    }
}

Source File: ImageUtil.java From density-converter with Apache License 2.0

6 votes

/**
 * Gets image dimensions for given file
 *
 * @param imgFile image file
 * @return dimensions of image
 * @throws IOException if the file is not a known image
 */
public static Dimension getImageDimension(File imgFile) throws IOException {
    int pos = imgFile.getName().lastIndexOf(".");
    if (pos == -1)
        throw new IOException("No extension for file: " + imgFile.getAbsolutePath());
    String suffix = imgFile.getName().substring(pos + 1);
    Iterator<ImageReader> iter = ImageIO.getImageReadersBySuffix(suffix);
    if (iter.hasNext()) {
        ImageReader reader = iter.next();
        try {
            ImageInputStream stream = new FileImageInputStream(imgFile);
            reader.setInput(stream);
            int width = reader.getWidth(reader.getMinIndex());
            int height = reader.getHeight(reader.getMinIndex());
            return new Dimension(width, height);
        } finally {
            reader.dispose();
        }
    }

    throw new IOException("Not a known image file: " + imgFile.getAbsolutePath());
}

Source File: ImageHelper.java From MillionHero with MIT License

6 votes

/**
 * 图片裁剪通用接口
 *
 * @param src  图片源地址,图片格式PNG
 * @param dest 图片目的地址
 * @param x    图片起始点x坐标
 * @param y    图片起始点y坐标
 * @param w    图片宽度
 * @param h    图片高度
 */
public void cutImage(String src, String dest, int x, int y, int w, int h)  {
    try{
        Iterator iterator = ImageIO.getImageReadersByFormatName("png");
        ImageReader reader = (ImageReader) iterator.next();
        InputStream in = new FileInputStream(src);
        ImageInputStream iis = ImageIO.createImageInputStream(in);
        reader.setInput(iis, true);
        ImageReadParam param = reader.getDefaultReadParam();
        Rectangle rect = new Rectangle(x, y, w, h);
        param.setSourceRegion(rect);
        BufferedImage bi = reader.read(0, param);
        ImageIO.write(bi, "png", new File(dest));
    }catch (IOException e){
        System.err.println("裁剪图片失败");
    }


}

Source File: TruncatedImageWarningTest.java From hottub with GNU General Public License v2.0

6 votes

public static void main(String[] args) throws IOException {

        String sep = System.getProperty("file.separator");
        String dir = System.getProperty("test.src", ".");
        String filePath = dir+sep+fileName;
        System.out.println("Test file: " + filePath);
        File f = new File(filePath);
        ImageInputStream in = ImageIO.createImageInputStream(f);
        ImageReader reader = ImageIO.getImageReaders(in).next();
        TruncatedImageWarningTest twt = new TruncatedImageWarningTest();
        reader.addIIOReadWarningListener(twt);
        reader.setInput(in);
        reader.read(0);
        if (!twt.receivedWarning) {
            throw new RuntimeException("No expected warning");
        }
    }

Source File: ImageLoadJaiTest.java From java-image-processing-survival-guide with Apache License 2.0

6 votes

/**
 * Load a multi-page TIFF image and split it into its individual pages.
 */
@Test
public void testExtractPagesFromMultiPageTiffCompression7() throws Exception {

    File sourceImageFile = getImageFile("tiff", "test-multi-rgb-compression-type-7.tiff");
    ImageInputStream is = ImageIO.createImageInputStream(sourceImageFile);

    // get the first matching reader
    Iterator<ImageReader> iterator = ImageIO.getImageReaders(is);
    ImageReader imageReader = iterator.next();
    imageReader.setInput(is);

    // split the multi-page TIFF
    int pages = imageReader.getNumImages(true);
    for (int i = 0; i < pages; i++) {
        BufferedImage bufferedImage = imageReader.read(i);
        assertValidBufferedImage(bufferedImage);
    }

    assertEquals("Expect to have 10 pages", 10, pages);
}

Source File: BigBufferedImage.java From OpenRS with GNU General Public License v3.0

6 votes

@Override
public ImagePartLoader call() throws Exception {
    Thread.currentThread().setPriority((Thread.MIN_PRIORITY + Thread.NORM_PRIORITY) / 2);
    try (ImageInputStream stream = ImageIO.createImageInputStream(file);) {
        Iterator<ImageReader> readers = ImageIO.getImageReaders(stream);
        if (readers.hasNext()) {
            ImageReader reader = readers.next();
            reader.setInput(stream, true, true);
            ImageReadParam param = reader.getDefaultReadParam();
            param.setSourceRegion(region);
            BufferedImage part = reader.read(0, param);
            Raster source = part.getRaster();
            WritableRaster target = image.getRaster();
            target.setRect(0, y, source);
        }
    }
    return ImagePartLoader.this;
}

Source File: ReadAsGrayTest.java From jdk8u-dev-jdk with GNU General Public License v2.0

5 votes

private static void doTest(int type) throws IOException {
    BufferedImage src = createTestImage(type);

    File f = new File("test.jpg");

    if (!ImageIO.write(src, "jpg", f)) {
        throw new RuntimeException("Failed to write test image.");
    }

    ImageInputStream iis = ImageIO.createImageInputStream(f);
    ImageReader reader = ImageIO.getImageReaders(iis).next();
    reader.setInput(iis);

    Iterator<ImageTypeSpecifier> types = reader.getImageTypes(0);
    ImageTypeSpecifier srgb = null;
    ImageTypeSpecifier gray = null;
    // look for gray and srgb types
    while ((srgb == null || gray == null) && types.hasNext()) {
        ImageTypeSpecifier t = types.next();
        if (t.getColorModel().getColorSpace().getType() == TYPE_GRAY) {
            gray = t;
        }
        if (t.getColorModel().getColorSpace() == sRGB) {
            srgb = t;
        }
    }
    if (gray == null) {
        throw new RuntimeException("No gray type available.");
    }
    if (srgb == null) {
        throw new RuntimeException("No srgb type available.");
    }

    System.out.println("Read as GRAY...");
    testType(reader, gray, src);

    System.out.println("Read as sRGB...");
    testType(reader, srgb, src);
}

Source File: ReadAsGrayTest.java From TencentKona-8 with GNU General Public License v2.0

5 votes

private static void doTest(int type) throws IOException {
    BufferedImage src = createTestImage(type);

    File f = new File("test.jpg");

    if (!ImageIO.write(src, "jpg", f)) {
        throw new RuntimeException("Failed to write test image.");
    }

    ImageInputStream iis = ImageIO.createImageInputStream(f);
    ImageReader reader = ImageIO.getImageReaders(iis).next();
    reader.setInput(iis);

    Iterator<ImageTypeSpecifier> types = reader.getImageTypes(0);
    ImageTypeSpecifier srgb = null;
    ImageTypeSpecifier gray = null;
    // look for gray and srgb types
    while ((srgb == null || gray == null) && types.hasNext()) {
        ImageTypeSpecifier t = types.next();
        if (t.getColorModel().getColorSpace().getType() == TYPE_GRAY) {
            gray = t;
        }
        if (t.getColorModel().getColorSpace() == sRGB) {
            srgb = t;
        }
    }
    if (gray == null) {
        throw new RuntimeException("No gray type available.");
    }
    if (srgb == null) {
        throw new RuntimeException("No srgb type available.");
    }

    System.out.println("Read as GRAY...");
    testType(reader, gray, src);

    System.out.println("Read as sRGB...");
    testType(reader, srgb, src);
}

Source File: BooleanAttributes.java From jdk8u-jdk with GNU General Public License v2.0

4 votes

public static void test(String mimeType, boolean useStreamMeta,
                        String metaXml, String... boolXpaths)
    throws Exception
{
    BufferedImage img =
        new BufferedImage(16, 16, BufferedImage.TYPE_INT_RGB);
    ImageWriter iw = ImageIO.getImageWritersByMIMEType(mimeType).next();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    ImageOutputStream ios = new MemoryCacheImageOutputStream(os);
    iw.setOutput(ios);
    ImageWriteParam param = null;
    IIOMetadata streamMeta = iw.getDefaultStreamMetadata(param);
    IIOMetadata imageMeta =
        iw.getDefaultImageMetadata(new ImageTypeSpecifier(img), param);
    IIOMetadata meta = useStreamMeta ? streamMeta : imageMeta;
    Source src = new StreamSource(new StringReader(metaXml));
    DOMResult dst = new DOMResult();
    transform(src, dst);
    Document doc = (Document)dst.getNode();
    Element node = doc.getDocumentElement();
    String metaFormat = node.getNodeName();

    // Verify that the default metadata gets formatted correctly.
    verify(meta.getAsTree(metaFormat), boolXpaths, false);

    meta.mergeTree(metaFormat, node);

    // Verify that the merged metadata gets formatte correctly.
    verify(meta.getAsTree(metaFormat), boolXpaths, true);

    iw.write(streamMeta, new IIOImage(img, null, imageMeta), param);
    iw.dispose();
    ios.close();
    ImageReader ir = ImageIO.getImageReader(iw);
    byte[] bytes = os.toByteArray();
    if (bytes.length == 0)
        throw new AssertionError("Zero length image file");
    ByteArrayInputStream is = new ByteArrayInputStream(bytes);
    ImageInputStream iis = new MemoryCacheImageInputStream(is);
    ir.setInput(iis);
    if (useStreamMeta) meta = ir.getStreamMetadata();
    else meta = ir.getImageMetadata(0);

    // Verify again after writing and re-reading the image
    verify(meta.getAsTree(metaFormat), boolXpaths, true);
}

Source File: ImageUtils.java From RemoteSupportTool with Apache License 2.0

4 votes

public static BufferedImage read(InputStream input) throws IOException {
    ImageReader reader = ImageIO.getImageReadersByFormatName("jpg").next();
    reader.setInput(ImageIO.createImageInputStream(input), false);
    //LOGGER.debug("number of images: " + reader.getNumImages(true));
    return reader.read(0);
}

Source File: UIUtil.java From birt with Eclipse Public License 1.0

4 votes

/**
 * Returns the DPI info of given image if applicable.
 * 
 * @param imageStream
 * @return the DPI values in format of {hdpi, vdpi}.
 */
public static int[] getImageResolution( InputStream imageStream )
{
	int[] dpi = {
			0, 0
	};

	if ( imageStream != null )
	{
		try
		{
			ImageInputStream iis = ImageIO.createImageInputStream( imageStream );
			Iterator<ImageReader> i = ImageIO.getImageReaders( iis );
			ImageReader r = i.next( );
			r.setInput( iis );
			r.read( 0 );

			IIOMetadata meta = r.getImageMetadata( 0 );

			if ( meta != null )
			{
				double mm2inch = 25.4;

				NodeList lst;
				Element node = (Element) meta.getAsTree( "javax_imageio_1.0" ); //$NON-NLS-1$
				lst = node.getElementsByTagName( "HorizontalPixelSize" ); //$NON-NLS-1$
				if ( lst != null && lst.getLength( ) == 1 )
				{
					dpi[0] = (int) ( mm2inch / Float.parseFloat( ( (Element) lst.item( 0 ) ).getAttribute( "value" ) ) ); //$NON-NLS-1$
				}

				lst = node.getElementsByTagName( "VerticalPixelSize" ); //$NON-NLS-1$
				if ( lst != null && lst.getLength( ) == 1 )
				{
					dpi[1] = (int) ( mm2inch / Float.parseFloat( ( (Element) lst.item( 0 ) ).getAttribute( "value" ) ) ); //$NON-NLS-1$
				}
			}
		}
		catch ( Exception e )
		{
			e.printStackTrace( );
		}
	}

	return dpi;
}

Source File: BMPPixelSpacingTest.java From openjdk-jdk9 with GNU General Public License v2.0

4 votes

public static void main(String[] args) throws Exception {
    // Header contaning X & Y pixels-per-meter more than value 1
    byte[] bmpHeaderData = { (byte) 0x42, (byte) 0x4d, (byte) 0x7e,
        (byte) 0x06, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
        (byte) 0x00, (byte) 0x00, (byte) 0x3e, (byte) 0x00, (byte) 0x00,
        (byte) 0x00, (byte) 0x28, (byte) 0x00, (byte) 0x00, (byte) 0x00,
        (byte) 0x64, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x64,
        (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
        (byte) 0x01, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
        (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
        (byte) 0x02, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x02,
        (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
        (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0x00, (byte) 0xff,
        (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
        (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
        (byte) 0xff };

    ImageInputStream imageInput = ImageIO.
        createImageInputStream(new ByteArrayInputStream(bmpHeaderData));

    for (Iterator<ImageReader> it = ImageIO.getImageReaders(imageInput);
        it.hasNext(); ) {
        ImageReader reader = it.next();
        reader.setInput(imageInput);
        IIOMetadata metadata = reader.getImageMetadata(0);

        Node rootNode = metadata.getAsTree("javax_imageio_1.0");
        NodeList nl = rootNode.getChildNodes();

        //Parse until you get Dimension child node
        for (int i = 0; i < nl.getLength(); i++) {
            Node node = nl.item(i);
            if ((node.getNodeName()).equals("Dimension")) {
                //get childnode list under Dimension node
                NodeList cl = node.getChildNodes();
                //Corresponding node indices under Dimension node
                int horizontalNodeIndex = 1;
                int verticalNodeIndex = 2;
                Node horizontalNode = cl.item(horizontalNodeIndex);
                Node verticalNode = cl.item(verticalNodeIndex);

                //get attributes for horizontal and vertical nodes
                NamedNodeMap horizontalAttr = horizontalNode.
                    getAttributes();
                NamedNodeMap verticalAttr = verticalNode.getAttributes();

                //since they have only one attribute index is 0
                int attributeIndex = 0;
                Node horizontalValue = horizontalAttr.item(attributeIndex);
                Node verticalValue = verticalAttr.item(attributeIndex);
                float horizontalNodeValue = Float.
                    parseFloat((horizontalValue.getNodeValue()));
                float verticalNodeValue = Float.
                    parseFloat((verticalValue.getNodeValue()));

                float expectedHorizontalValue, expectedVerticalValue;
                // in test metadata xPixelsPerMeter & yPixelsPerMeter is 2
                expectedHorizontalValue = expectedVerticalValue =
                    1000.0F / 2;
                //expected and returned values should be same
                if ((Float.compare(horizontalNodeValue,
                    expectedHorizontalValue) != 0) ||
                    (Float.compare(verticalNodeValue,
                    expectedVerticalValue) != 0)) {
                    throw new RuntimeException("Invalid pixel spacing");
                }
            }
        }
}
}

Source File: BooleanAttributes.java From openjdk-jdk9 with GNU General Public License v2.0

4 votes

public static void test(String mimeType, boolean useStreamMeta,
                        String metaXml, String... boolXpaths)
    throws Exception
{
    BufferedImage img =
        new BufferedImage(16, 16, BufferedImage.TYPE_INT_RGB);
    ImageWriter iw = ImageIO.getImageWritersByMIMEType(mimeType).next();
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    ImageOutputStream ios = new MemoryCacheImageOutputStream(os);
    iw.setOutput(ios);
    ImageWriteParam param = null;
    IIOMetadata streamMeta = iw.getDefaultStreamMetadata(param);
    IIOMetadata imageMeta =
        iw.getDefaultImageMetadata(new ImageTypeSpecifier(img), param);
    IIOMetadata meta = useStreamMeta ? streamMeta : imageMeta;
    Source src = new StreamSource(new StringReader(metaXml));
    DOMResult dst = new DOMResult();
    transform(src, dst);
    Document doc = (Document)dst.getNode();
    Element node = doc.getDocumentElement();
    String metaFormat = node.getNodeName();

    // Verify that the default metadata gets formatted correctly.
    verify(meta.getAsTree(metaFormat), boolXpaths, false);

    meta.mergeTree(metaFormat, node);

    // Verify that the merged metadata gets formatte correctly.
    verify(meta.getAsTree(metaFormat), boolXpaths, true);

    iw.write(streamMeta, new IIOImage(img, null, imageMeta), param);
    iw.dispose();
    ios.close();
    ImageReader ir = ImageIO.getImageReader(iw);
    byte[] bytes = os.toByteArray();
    if (bytes.length == 0)
        throw new AssertionError("Zero length image file");
    ByteArrayInputStream is = new ByteArrayInputStream(bytes);
    ImageInputStream iis = new MemoryCacheImageInputStream(is);
    ir.setInput(iis);
    if (useStreamMeta) meta = ir.getStreamMetadata();
    else meta = ir.getImageMetadata(0);

    // Verify again after writing and re-reading the image
    verify(meta.getAsTree(metaFormat), boolXpaths, true);
}

Java Code Examples for javax.imageio.ImageReader#setInput()