Example usage for java.awt.image BufferedImage getColorModel

Introduction

In this page you can find the example usage for java.awt.image BufferedImage getColorModel.

Prototype

public ColorModel getColorModel() 

Source Link

Document

Returns the ColorModel .

Usage

From source file:com.fengduo.bee.service.impl.file.FileServiceImpl.java

/**
 * ?/*w  ww  . j ava  2  s . c  o m*/
 * 
 * @param source
 * @param targetW
 * @param targetH
 * @param ifScaling ?
 * @return
 */
public static BufferedImage resize(BufferedImage source, int targetW, int targetH, boolean ifScaling) {
    // targetWtargetH
    int type = source.getType();
    BufferedImage target = null;
    double sx = (double) targetW / source.getWidth();
    double sy = (double) targetH / source.getHeight();
    // targetWtargetH??,?if else???
    if (ifScaling) {
        if (sx > sy) {
            sx = sy;
            targetW = (int) (sx * source.getWidth());
        } else {
            sy = sx;
            targetH = (int) (sy * source.getHeight());
        }
    }
    if (type == BufferedImage.TYPE_CUSTOM) { // handmade
        ColorModel cm = source.getColorModel();
        WritableRaster raster = cm.createCompatibleWritableRaster(targetW, targetH);
        boolean alphaPremultiplied = cm.isAlphaPremultiplied();
        target = new BufferedImage(cm, raster, alphaPremultiplied, null);
    } else
        target = new BufferedImage(targetW, targetH, type);
    Graphics2D g = target.createGraphics();
    // smoother than exlax:
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.drawRenderedImage(source, AffineTransform.getScaleInstance(sx, sy));
    g.dispose();
    return target;
}

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From source file:io.warp10.script.processing.image.Pdecode.java

@Override
public Object apply(WarpScriptStack stack) throws WarpScriptException {
    Object top = stack.pop();//from  w  ww  .ja v a2 s.  c o  m

    String data = top.toString();

    if (!(top instanceof String) || !data.startsWith("data:image/")) {
        throw new WarpScriptException(getName() + " expects a base64 data URI on top of the stack.");
    }

    data = data.substring(data.indexOf(",") + 1);

    byte[] bytes = Base64.decodeBase64(data);

    Image awtImage = new ImageIcon(bytes).getImage();

    if (awtImage instanceof BufferedImage) {
        BufferedImage buffImage = (BufferedImage) awtImage;
        int space = buffImage.getColorModel().getColorSpace().getType();
        if (space == ColorSpace.TYPE_CMYK) {
            throw new WarpScriptException(getName() + " only supports RGB images.");
        }
    }

    PImage image = new PImage(awtImage);

    //
    // Check transparency
    //

    if (null != image.pixels) {
        for (int i = 0; i < image.pixels.length; i++) {
            // since transparency is often at corners, hopefully this
            // will find a non-transparent pixel quickly and exit
            if ((image.pixels[i] & 0xff000000) != 0xff000000) {
                image.format = PImage.ARGB;
                break;
            }
        }
    }

    stack.push(image);

    return stack;
}

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From source file:osmb.program.tiledatawriter.TileImageJpegDataWriter.java

@Override
public void processImage(BufferedImage image, OutputStream out) throws IOException {
    if (image.getColorModel().hasAlpha()) {
        // Javas JPEG writes has a bug when the image has alpha transparency
        // see http://stackoverflow.com/questions/4386446/problem-using-imageio-write-jpg-file

        BufferedImage imageRGB = new BufferedImage(image.getWidth(), image.getHeight(),
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g = imageRGB.createGraphics();
        g.drawImage(image, null, 0, 0);//  w w  w. j  a va2s.  co m
        g.dispose();
        image = imageRGB;
    }

    ImageOutputStream imageOut = ImageIO.createImageOutputStream(out);
    jpegImageWriter.setOutput(imageOut);
    IIOImage ioImage = new IIOImage(image, null, null);
    jpegImageWriter.write(null, ioImage, iwp);
}

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From source file:osmcd.program.tiledatawriter.TileImageJpegDataWriter.java

public void processImage(BufferedImage image, OutputStream out) throws IOException {

    if (image.getColorModel().hasAlpha()) {
        // Javas JPEG writes has a bug when the image has alpha transparency
        // see http://stackoverflow.com/questions/4386446/problem-using-imageio-write-jpg-file

        BufferedImage imageRGB = new BufferedImage(image.getWidth(), image.getHeight(),
                BufferedImage.TYPE_INT_RGB);
        Graphics2D g = imageRGB.createGraphics();
        g.drawImage(image, null, 0, 0);/* w ww .  ja  va  2s.c om*/
        g.dispose();
        image = imageRGB;
    }

    ImageOutputStream imageOut = ImageIO.createImageOutputStream(out);
    jpegImageWriter.setOutput(imageOut);
    IIOImage ioImage = new IIOImage(image, null, null);
    jpegImageWriter.write(null, ioImage, iwp);
}

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From source file:RasterImageTest.java

/**
 * Makes the Mandelbrot image./* w w  w. ja v  a 2s .  c  om*/
 * @param width the width
 * @parah height the height
 * @return the image
 */
public BufferedImage makeMandelbrot(int width, int height) {
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    WritableRaster raster = image.getRaster();
    ColorModel model = image.getColorModel();

    Color fractalColor = Color.red;
    int argb = fractalColor.getRGB();
    Object colorData = model.getDataElements(argb, null);

    for (int i = 0; i < width; i++)
        for (int j = 0; j < height; j++) {
            double a = XMIN + i * (XMAX - XMIN) / width;
            double b = YMIN + j * (YMAX - YMIN) / height;
            if (!escapesToInfinity(a, b))
                raster.setDataElements(i, j, colorData);
        }
    return image;
}

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From source file:net.pms.medialibrary.commons.helpers.FileImportHelper.java

private static boolean hasAlpha(Image image) {
    // If buffered image, the color model is readily available
    if (image instanceof BufferedImage) {
        BufferedImage bimage = (BufferedImage) image;
        return bimage.getColorModel().hasAlpha();
    }/*  w  ww  .  j ava  2 s.  c  om*/

    // Use a pixel grabber to retrieve the image's color model;
    // grabbing a single pixel is usually sufficient
    PixelGrabber pg = new PixelGrabber(image, 0, 0, 1, 1, false);
    try {
        pg.grabPixels();
    } catch (InterruptedException e) {
    }

    // Get the image's color model
    ColorModel cm = pg.getColorModel();
    return cm.hasAlpha();
}

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From source file:com.alibaba.simpleimage.CompositeImageProcessorTest.java

protected void check(File src, File dest) throws Exception {
    FileInputStream in = null;//w  w  w .j av a2  s . com
    FileInputStream in2 = null;
    try {
        in = new FileInputStream(dest);
        in2 = new FileInputStream(src);
        ImageRender rr = new ReadRender(in, false);
        ImageRender rr2 = new ReadRender(in2, false);
        ImageWrapper srcImg = rr2.render();
        ImageWrapper dstImg = rr.render();
        BufferedImage dstBi = dstImg.getAsBufferedImage();

        assertTrue(dstBi.getColorModel().getColorSpace().isCS_sRGB());
        assertTrue(dstBi.getWidth() <= 1024);
        assertTrue(dstBi.getHeight() <= 1024);
        if (srcImg.getImageFormat() != ImageFormat.GIF) {
            if (srcImg.getQuality() >= 50) {
                assertTrue(dstImg.getQuality() == srcImg.getQuality());
            } else {
                assertTrue(dstImg.getQuality() == 50);
            }

            assertTrue(srcImg.getHorizontalSamplingFactor(0) == dstImg.getHorizontalSamplingFactor(0));
            assertTrue(srcImg.getVerticalSamplingFactor(0) == dstImg.getVerticalSamplingFactor(0));
            assertTrue(srcImg.getHorizontalSamplingFactor(1) == dstImg.getHorizontalSamplingFactor(1));
            assertTrue(srcImg.getVerticalSamplingFactor(1) == dstImg.getVerticalSamplingFactor(1));
            assertTrue(srcImg.getHorizontalSamplingFactor(2) == dstImg.getHorizontalSamplingFactor(2));
            assertTrue(srcImg.getVerticalSamplingFactor(2) == dstImg.getVerticalSamplingFactor(2));
        }
    } finally {
        IOUtils.closeQuietly(in);
        IOUtils.closeQuietly(in2);
    }
}

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From source file:org.jahia.services.image.AbstractJava2DImageService.java

protected BufferedImage getDestImage(int newWidth, int newHeight, BufferedImage originalImage) {
    BufferedImage dest;//from   w  ww  .  j  a  va 2 s.co m
    if (originalImage.getColorModel() instanceof IndexColorModel) {
        // dest = new BufferedImage(newWidth, newHeight, originalImage.getType(), (IndexColorModel) originalImage.getColorModel());
        dest = new BufferedImage(originalImage.getColorModel(),
                originalImage.getColorModel().createCompatibleWritableRaster(newWidth, newHeight), false,
                new Hashtable<Object, Object>());
    } else {
        dest = new BufferedImage(newWidth, newHeight, originalImage.getType());
    }
    return dest;
}

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From source file:org.sejda.sambox.pdmodel.graphics.image.JPEGFactoryTest.java

@Test
public void testCreateFromImageRGB() throws IOException {
    PDDocument document = new PDDocument();
    BufferedImage image = ImageIO.read(JPEGFactoryTest.class.getResourceAsStream("jpeg.jpg"));
    assertEquals(3, image.getColorModel().getNumComponents());
    PDImageXObject ximage = JPEGFactory.createFromImage(image);
    validate(ximage, 8, 344, 287, "jpg", PDDeviceRGB.INSTANCE.getName());

    doWritePDF(document, ximage, testResultsDir, "jpegrgb.pdf");
}

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From source file:org.sejda.sambox.pdmodel.graphics.image.JPEGFactoryTest.java

@Test
public void testCreateFromImage256() throws IOException {
    PDDocument document = new PDDocument();
    BufferedImage image = ImageIO.read(JPEGFactoryTest.class.getResourceAsStream("jpeg256.jpg"));
    assertEquals(1, image.getColorModel().getNumComponents());
    PDImageXObject ximage = JPEGFactory.createFromImage(image);
    validate(ximage, 8, 344, 287, "jpg", PDDeviceGray.INSTANCE.getName());

    doWritePDF(document, ximage, testResultsDir, "jpeg256.pdf");
}

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