Examples with ByteProcessor ij.process.ByteProcessor used on opensource projects

Example 96 with ByteProcessor

use of ij.process.ByteProcessor in project imagingbook-common by imagingbook.

the class KMeansClusteringQuantizer method main.

// ----------------------------------------------------------------------
public static void main(String[] args) {
    // String path = "D:/svn-book/Book/img/ch-color-images/alps-01s.png";
    // String path = "D:/svn-book/Book/img/ch-color-images/desaturation-hsv/balls.jpg";
    String path = "C:/_SVN/svn-book/Book/img/ch-color-images/desaturation-hsv/balls.jpg";
    // String path = "D:/svn-book/Book/img/ch-color-images/single-color.png";
    // String path = "D:/svn-book/Book/img/ch-color-images/two-colors.png";
    // String path = "D:/svn-book/Book/img/ch-color-images/random-colors.png";
    // String path = "D:/svn-book/Book/img/ch-color-images/ramp-fire.png";
    int K = 16;
    System.out.println("image = " + path);
    System.out.println("K = " + K);
    ImagePlus im = IJ.openImage(path);
    if (im == null) {
        System.out.println("could not open: " + path);
        return;
    }
    ImageProcessor ip = im.getProcessor();
    ColorProcessor cp = ip.convertToColorProcessor();
    Parameters params = new Parameters();
    params.maxColors = K;
    ColorQuantizer quantizer = new KMeansClusteringQuantizer(cp, params);
    quantizer.listColorMap();
    System.out.println("quantizing image");
    ByteProcessor qi = quantizer.quantize(cp);
    System.out.println("showing image");
    (new ImagePlus("quantizez", qi)).show();
}

Example 97 with ByteProcessor

use of ij.process.ByteProcessor in project imagingbook-common by imagingbook.

the class MedianCutQuantizer method main.

// ----------------------------------------------------------------------
public static void main(String[] args) {
    // String path = "D:/svn-book/Book/img/ch-color-images/alps-01s.png";
    String path = "D:/svn-book/Book/img/ch-color-images/desaturation-hsv/balls.jpg";
    // String path = "D:/svn-book/Book/img/ch-color-images/single-color.png";
    // String path = "D:/svn-book/Book/img/ch-color-images/two-colors.png";
    // String path = "D:/svn-book/Book/img/ch-color-images/random-colors.png";
    // String path = "D:/svn-book/Book/img/ch-color-images/ramp-fire.png";
    int K = 16;
    System.out.println("image = " + path);
    System.out.println("K = " + K);
    ImagePlus im = IJ.openImage(path);
    if (im == null) {
        System.out.println("could not open: " + path);
        return;
    }
    ImageProcessor ip = im.getProcessor();
    ColorProcessor cp = ip.convertToColorProcessor();
    MedianCutQuantizer quantizer = new MedianCutQuantizer(cp, K);
    quantizer.listColorMap();
    System.out.println("quantizing image");
    ByteProcessor qi = quantizer.quantize(cp);
    System.out.println("showing image");
    (new ImagePlus("quantizez", qi)).show();
}

Example 98 with ByteProcessor

use of ij.process.ByteProcessor in project imagingbook-common by imagingbook.

the class Dft2d method makePowerImage.

public ByteProcessor makePowerImage() {
    ByteProcessor ip = new ByteProcessor(width, height);
    byte[] pixels = (byte[]) ip.getPixels();
    // PowerMax must be set
    double max = Math.log(PowerMax + 1.0);
    double scale = 1.0;
    if (scaleValue > 0)
        scale = scaleValue / max;
    for (int i = 0; i < pixels.length; i++) {
        double p = Power[i];
        if (p < 0)
            p = -p;
        double plog = Math.log(p + 1.0);
        int pint = (int) (plog * scale);
        pixels[i] = (byte) (0xFF & pint);
    }
    if (swapQu)
        swapQuadrants(ip);
    return ip;
}

Example 99 with ByteProcessor

use of ij.process.ByteProcessor in project imagingbook-common by imagingbook.

the class IjUtilsTest method testByteArrayReadWrite.

@Test
public void testByteArrayReadWrite() {
    ByteProcessor bp1 = makeRandomByteProcessor(W, H);
    byte[][] A = IjUtils.toByteArray(bp1);
    ByteProcessor bp2 = IjUtils.toByteProcessor(A);
    assertTrue(ImageTests.match(bp1, bp2));
}

Example 100 with ByteProcessor

use of ij.process.ByteProcessor in project imagingbook-common by imagingbook.

the class ColorEdgeDetector method getRgbFloatChannel.

FloatProcessor getRgbFloatChannel(ColorProcessor cp, int c) {
    // c = 0,1,2
    int w = cp.getWidth();
    int h = cp.getHeight();
    // numbered from 1,...,3!
    ByteProcessor bp = new ByteProcessor(w, h, cp.getChannel(c + 1));
    return bp.convertToFloatProcessor();
}