Examples with ImageLayout javax.media.jai.ImageLayout used on opensource projects

Example 11 with ImageLayout

use of javax.media.jai.ImageLayout in project imageio-ext by geosolutions-it.

the class ImageReadOpImageMT method layoutHelper.

/**
 * Derive the image layout based on the user-supplied layout, reading
 * parameters, and image index.
 */
private static ImageLayout layoutHelper(ImageLayout il, ImageReadParam param, ImageReader reader, int imageIndex) throws IOException {
    ImageLayout layout = (il == null) ? new ImageLayout() : (ImageLayout) il.clone();
    // and ColorModel from the ImageReadParam, if supplied.
    if (!layout.isValid(ImageLayout.SAMPLE_MODEL_MASK) && !layout.isValid(ImageLayout.COLOR_MODEL_MASK)) {
        // If an ImageReadParam has been supplied and has its
        // destinationType set then use it. Otherwise default to
        // the raw image type.
        ImageTypeSpecifier imageType = (param != null && param.getDestinationType() != null) ? param.getDestinationType() : reader.getRawImageType(imageIndex);
        // returns null for earth.jpg, Bas-noir.jpg, etc.
        if (imageType == null) {
            Iterator imageTypes = reader.getImageTypes(imageIndex);
            while (imageType == null && imageTypes.hasNext()) {
                imageType = (ImageTypeSpecifier) imageTypes.next();
            }
        }
        // XXX Should an exception be thrown if imageType is null?
        if (imageType != null) {
            // Set the SampleModel and ColorModel.
            layout.setSampleModel(imageType.getSampleModel());
            layout.setColorModel(imageType.getColorModel());
        }
    }
    // --- Set up the destination bounds. ---
    // Calculate the computable destination bounds.
    Dimension sourceSize = getSourceSize(param, reader, imageIndex);
    Rectangle srcRegion = new Rectangle();
    Rectangle destRegion = new Rectangle();
    computeRegions(param, sourceSize.width, sourceSize.height, layout.getMinX(// valid value or 0
    null), // valid value or 0
    layout.getMinY(null), false, srcRegion, destRegion);
    if (!destRegion.isEmpty()) {
        // Backup layout image bounds with computable bounds.
        if (!layout.isValid(ImageLayout.WIDTH_MASK)) {
            layout.setWidth(destRegion.width);
        }
        if (!layout.isValid(ImageLayout.HEIGHT_MASK)) {
            layout.setHeight(destRegion.height);
        }
        if (!layout.isValid(ImageLayout.MIN_X_MASK)) {
            layout.setMinX(destRegion.x);
        }
        if (!layout.isValid(ImageLayout.MIN_Y_MASK)) {
            layout.setMinY(destRegion.y);
        }
        // Ensure the layout bounds intersect computable bounds.
        Rectangle destBounds = new Rectangle(layout.getMinX(null), layout.getMinY(null), layout.getWidth(null), layout.getHeight(null));
        if (destRegion.intersection(destBounds).isEmpty()) {
            throw new IllegalArgumentException(I18N.getString("ImageReadOpImage0"));
        }
    }
    if (!layout.isValid(ImageLayout.TILE_GRID_X_OFFSET_MASK)) {
        layout.setTileGridXOffset(reader.getTileGridXOffset(imageIndex));
    }
    if (!layout.isValid(ImageLayout.TILE_GRID_Y_OFFSET_MASK)) {
        layout.setTileGridYOffset(reader.getTileGridYOffset(imageIndex));
    }
    if (!layout.isValid(ImageLayout.TILE_WIDTH_MASK)) {
        layout.setTileWidth(reader.getTileWidth(imageIndex));
    }
    if (!layout.isValid(ImageLayout.TILE_HEIGHT_MASK)) {
        layout.setTileHeight(reader.getTileHeight(imageIndex));
    }
    return layout;
}

Example 12 with ImageLayout

use of javax.media.jai.ImageLayout in project imageio-ext by geosolutions-it.

the class JP2KakaduReadTest method jaiReadFromFile.

@org.junit.Test
public void jaiReadFromFile() throws IOException {
    if (!runTests)
        return;
    final File file = TestData.file(this, "CB_TM432.jp2");
    ImageReadDescriptorMT.register(JAI.getDefaultInstance());
    final ParameterBlockJAI pbjImageRead = new ParameterBlockJAI("ImageReadMT");
    ImageLayout l = new ImageLayout();
    l.setTileHeight(256);
    l.setTileWidth(256);
    JP2KKakaduImageReadParam rp = new JP2KKakaduImageReadParam();
    rp.setSourceSubsampling(1, 1, 0, 0);
    rp.setSourceRegion(new Rectangle(10, 10, 200, 200));
    rp.setInterpolationType(JP2KKakaduImageReadParam.INTERPOLATION_BILINEAR);
    rp.setQualityLayers(2);
    pbjImageRead.setParameter("ReadParam", rp);
    pbjImageRead.setParameter("Input", file);
    pbjImageRead.setParameter("imageChoice", 0);
    RenderedOp image = JAI.create("ImageReadMT", pbjImageRead, new RenderingHints(JAI.KEY_IMAGE_LAYOUT, l));
    if (TestData.isInteractiveTest())
        ImageIOUtilities.visualize(image);
    else
        Assert.assertNotNull(image.getTiles());
}

Example 13 with ImageLayout

use of javax.media.jai.ImageLayout in project imageio-ext by geosolutions-it.

the class GrayAlpha8bitTest method testGrayAlpha8Bit.

@Test
public void testGrayAlpha8Bit() throws Exception {
    BufferedImage bi = new BufferedImage(50, 50, BufferedImage.TYPE_BYTE_GRAY);
    Graphics2D graphics = bi.createGraphics();
    graphics.setColor(Color.BLACK);
    graphics.fillRect(0, 0, 16, 32);
    graphics.setColor(Color.WHITE);
    graphics.fillRect(16, 0, 16, 32);
    graphics.dispose();
    final ImageLayout tempLayout = new ImageLayout(bi);
    tempLayout.unsetValid(ImageLayout.COLOR_MODEL_MASK).unsetValid(ImageLayout.SAMPLE_MODEL_MASK);
    RenderedImage alpha = ConstantDescriptor.create(Float.valueOf(bi.getWidth()), Float.valueOf(bi.getHeight()), new Byte[] { Byte.valueOf((byte) 255) }, new RenderingHints(JAI.KEY_IMAGE_LAYOUT, tempLayout));
    RenderedImage grayAlpha = BandMergeDescriptor.create(bi, alpha, null);
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    float quality = 5f / 9 - 1;
    new PNGWriter().writePNG(grayAlpha, bos, -quality, FilterType.FILTER_NONE);
    BufferedImage read = ImageIO.read(new ByteArrayInputStream(bos.toByteArray()));
    BufferedImage gaBuffered = PlanarImage.wrapRenderedImage(grayAlpha).getAsBufferedImage();
    ImageAssert.assertImagesEqual(gaBuffered, read);
    // now using imagewriter interface
    ImageWriter writer = new PNGImageWriterSPI().createWriterInstance();
    writer.setOutput(bos);
    ImageWriteParam wp = writer.getDefaultWriteParam();
    wp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    wp.setCompressionQuality(-quality);
    writer.write(null, new IIOImage(bi, null, null), wp);
    writer.dispose();
    ImageAssert.assertImagesEqual(bi, ImageIO.read(new ByteArrayInputStream(bos.toByteArray())));
}

Example 14 with ImageLayout

use of javax.media.jai.ImageLayout in project imageio-ext by geosolutions-it.

the class PngSuiteImagesTest method testRoundTripTiledImage.

@Test
public void testRoundTripTiledImage() throws Exception {
    BufferedImage input = ImageIO.read(sourceFile);
    // prepare a tiled image layout
    ImageLayout il = new ImageLayout(input);
    il.setTileWidth(8);
    il.setTileHeight(8);
    RenderingHints hints = new RenderingHints(JAI.KEY_IMAGE_LAYOUT, il);
    RenderedOp tiled = FormatDescriptor.create(input, input.getSampleModel().getDataType(), hints);
    assertEquals(8, tiled.getTileWidth());
    assertEquals(8, tiled.getTileHeight());
    roundTripPNGJ(input, tiled);
}

Example 15 with ImageLayout

use of javax.media.jai.ImageLayout in project imageio-ext by geosolutions-it.

the class JPEGReadTest method multithreadedJAIRead.

/**
 * Simple test read
 *
 * @throws FileNotFoundException
 * @throws IOException
 */
public void multithreadedJAIRead() throws FileNotFoundException, IOException {
    if (!isJmagickAvailable) {
        LOGGER.warning("JMagick Library is not Available; Skipping tests");
        return;
    }
    // register the image read mt operation
    ImageReadDescriptorMT.register(JAI.getDefaultInstance());
    // get the file we are going to read
    final String fileName = "001140.jpg";
    final File file = TestData.file(this, fileName);
    // acquire a reader for it but check that it is the right one
    final Iterator readersIt = ImageIO.getImageReaders(file);
    ImageReader reader = null;
    while (readersIt.hasNext()) {
        reader = (ImageReader) readersIt.next();
        if (reader instanceof JpegJMagickImageReader)
            break;
        reader = null;
    }
    assertNotNull(reader);
    // do an image read with jai
    final ParameterBlockJAI pbjImageRead;
    final ImageReadParam irp = reader.getDefaultReadParam();
    irp.setSourceSubsampling(4, 4, 0, 0);
    pbjImageRead = new ParameterBlockJAI("ImageReadMT");
    pbjImageRead.setParameter("Input", file);
    pbjImageRead.setParameter("Reader", reader);
    pbjImageRead.setParameter("readParam", irp);
    // set the layout so that we shrink the amount of memory needed to load
    // this image
    final ImageLayout l = new ImageLayout();
    l.setTileGridXOffset(0).setTileGridYOffset(0).setTileHeight(512).setTileWidth(512);
    RenderedOp image = JAI.create("ImageReadMT", pbjImageRead, new RenderingHints(JAI.KEY_IMAGE_LAYOUT, l));
    if (TestData.isInteractiveTest()) {
        final JFrame jf = new JFrame();
        jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        jf.getContentPane().add(new ScrollingImagePanel(image, 1024, 768));
        jf.pack();
        jf.show();
    } else {
        assertNotNull(image.getTiles());
        // remember that if we do not explictly provide an Imagereader to
        // the ImageReadMT operation it consistently dispose the one it
        // creates once we dispose the ImageReadOpImage
        image.dispose();
    }
}