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

Example 66 with ByteProcessor

use of ij.process.ByteProcessor in project TrakEM2 by trakem2.

the class Downsampler method downsampleAlphaAndOutside.

/**
 * Combine an alpha and outside mask into a downsampled alpha and outside
 * mask.  Those pixels not fully covered in the outside mask are set to 0,
 * all others to their interpolated value.
 *
 * @param aAlpha
 * @param aOutside
 * @return
 */
public static final Pair<ByteProcessor, ByteProcessor> downsampleAlphaAndOutside(final ByteProcessor aAlpha, final ByteProcessor aOutside) {
    final int wa = aAlpha.getWidth();
    final int ha = aAlpha.getHeight();
    final int wa2 = wa + wa;
    final int wb = wa / 2;
    final int hb = ha / 2;
    final int nb = hb * wb;
    final ByteProcessor bAlpha = new ByteProcessor(wb, hb);
    final ByteProcessor bOutside = new ByteProcessor(wb, hb);
    final byte[] aAlphaPixels = (byte[]) aAlpha.getPixels();
    final byte[] aOutsidePixels = (byte[]) aOutside.getPixels();
    final byte[] bAlphaPixels = (byte[]) bAlpha.getPixels();
    final byte[] bOutsidePixels = (byte[]) bOutside.getPixels();
    for (int ya = 0, yb = 0; yb < nb; ya += wa2, yb += wb) {
        final int ya1 = ya + wa;
        for (int xa = 0, xb = 0; xb < wb; xa += 2, ++xb) {
            final int xa1 = xa + 1;
            final int yaxa = ya + xa;
            final int yaxa1 = ya + xa1;
            final int ya1xa = ya1 + xa;
            final int ya1xa1 = ya1 + xa1;
            final int ybxb = yb + xb;
            final int sOutside = andByte(yaxa, yaxa1, ya1xa, ya1xa1, aOutsidePixels);
            combineAlphaAndOutside(sOutside, yaxa, yaxa1, ya1xa, ya1xa1, ybxb, aAlphaPixels, bAlphaPixels, bOutsidePixels);
        }
    }
    return new Pair<ByteProcessor, ByteProcessor>(bAlpha, bOutside);
}

Example 67 with ByteProcessor

use of ij.process.ByteProcessor in project TrakEM2 by trakem2.

the class Downsampler method downsampleByteProcessor.

public static final ByteProcessor downsampleByteProcessor(final ByteProcessor a) {
    final int wa = a.getWidth();
    final int ha = a.getHeight();
    final int wa2 = wa + wa;
    final int wb = wa / 2;
    final int hb = ha / 2;
    final int nb = hb * wb;
    final ByteProcessor b = new ByteProcessor(wb, hb);
    final byte[] aPixels = (byte[]) a.getPixels();
    final byte[] bPixels = (byte[]) b.getPixels();
    for (int ya = 0, yb = 0; yb < nb; ya += wa2, yb += wb) {
        final int ya1 = ya + wa;
        for (int xa = 0, xb = 0; xb < wb; xa += 2, ++xb) {
            final int xa1 = xa + 1;
            final int s = averageByte(ya + xa, ya + xa1, ya1 + xa, ya1 + xa1, aPixels);
            bPixels[yb + xb] = (byte) s;
        }
    }
    return b;
}

Example 68 with ByteProcessor

use of ij.process.ByteProcessor in project TrakEM2 by trakem2.

the class DownsamplerTest method testByteIntegral.

private static final void testByteIntegral(ByteProcessor ipByte) {
    while (ipByte.getWidth() > 32) {
        int w = ipByte.getWidth(), h = ipByte.getHeight();
        long[] l = FastIntegralImage.longIntegralImage((byte[]) ipByte.getPixels(), w, h);
        ipByte = new ByteProcessor(w / 2, h / 2, FastIntegralImage.scaleAreaAverage(l, w + 1, h + 1, w / 2, h / 2), null);
    }
}

Example 69 with ByteProcessor

use of ij.process.ByteProcessor in project TrakEM2 by trakem2.

the class DownsamplerTest method main.

/**
 * @param args
 */
public static void main(final String[] args) {
    new ImageJ();
    final Timer timer = new Timer();
    final ImagePlus imp = new ImagePlus("/home/saalfeld/tmp/fetter-example.tif");
    // final ImagePlus imp = new ImagePlus( "/home/albert/Desktop/t2/fetter-example.tif" );
    // final ImagePlus imp = new ImagePlus( "/home/saalfeld/Desktop/norway.jpg" );
    imp.show();
    final ImageProcessor ip = imp.getProcessor().duplicate();
    System.out.println("short");
    final ShortProcessor ipShort = (ShortProcessor) ip.convertToShort(false);
    for (int i = 0; i < n; ++i) {
        timer.start();
        testShort(ipShort);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("downsampleShort() + downsampleByteProcessor() (independent short with byte mapping + alpha)");
    for (int i = 0; i < n; ++i) {
        final Pair<ShortProcessor, byte[]> ba = new Pair<ShortProcessor, byte[]>(ipShort, (byte[]) ipShort.convertToByte(true).getPixels());
        final ByteProcessor alpha = new ByteProcessor(ipShort.getWidth(), ipShort.getHeight(), (byte[]) ipShort.convertToByte(true).getPixels(), null);
        timer.start();
        testShortAlphaIndependently(ba, alpha);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("downsampleShortProcessor() + convertToByte() + downsampleByteProcessor() (independent short + byte mapping + alpha)");
    for (int i = 0; i < n; ++i) {
        final ByteProcessor alpha = new ByteProcessor(ipShort.getWidth(), ipShort.getHeight(), (byte[]) ipShort.convertToByte(true).getPixels(), null);
        timer.start();
        testShortAlphaByteMappingIndependently(ipShort, alpha);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("float");
    final FloatProcessor ipFloat = (FloatProcessor) ip.convertToFloat();
    for (int i = 0; i < n; ++i) {
        timer.start();
        testFloat(ipFloat);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("independent float with byte mapping + alpha");
    for (int i = 0; i < n; ++i) {
        final Pair<FloatProcessor, byte[]> ba = new Pair<FloatProcessor, byte[]>(ipFloat, (byte[]) ipShort.convertToByte(true).getPixels());
        final ByteProcessor alpha = new ByteProcessor(ipShort.getWidth(), ipShort.getHeight(), (byte[]) ipShort.convertToByte(true).getPixels(), null);
        timer.start();
        testFloatAlphaIndependently(ba, alpha);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("byte");
    final ByteProcessor ipByte = (ByteProcessor) ip.convertToByte(true);
    for (int i = 0; i < n; ++i) {
        timer.start();
        testByte(ipByte);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("2 x byte");
    final ByteProcessor ipByte2 = (ByteProcessor) ipByte.duplicate();
    for (int i = 0; i < n; ++i) {
        timer.start();
        testByte(ipByte);
        testByte(ipByte2);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("color");
    final ColorProcessor ipColor = (ColorProcessor) ip.convertToRGB();
    for (int i = 0; i < n; ++i) {
        timer.start();
        testColor(ipColor);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("independent color with byte mapping + alpha");
    for (int i = 0; i < n; ++i) {
        final byte[][] rgb = new byte[4][ipColor.getWidth() * ipColor.getHeight()];
        ipColor.getRGB(rgb[0], rgb[1], rgb[2]);
        final Pair<ColorProcessor, byte[][]> ba = new Pair<ColorProcessor, byte[][]>(ipColor, rgb);
        final ByteProcessor alpha = new ByteProcessor(ipShort.getWidth(), ipShort.getHeight(), (byte[]) ipShort.convertToByte(true).getPixels(), null);
        timer.start();
        testColorAlphaIndependently(ba, alpha);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("alpha + outside");
    for (int i = 0; i < n; ++i) {
        ByteProcessor outside = new ByteProcessor(ipByte.getWidth(), ipByte.getHeight());
        outside.setRoi(new OvalRoi(100, 100, ipByte.getWidth() - 200, ipByte.getHeight() - 200));
        outside.setValue(255);
        outside.fill(outside.getMask());
        final Pair<ByteProcessor, ByteProcessor> ba = new Pair<ByteProcessor, ByteProcessor>(ipByte, outside);
        timer.start();
        testAlphaOutside(ba);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
    System.out.println("outside");
    for (int i = 0; i < n; ++i) {
        ByteProcessor outside = new ByteProcessor(ipByte.getWidth(), ipByte.getHeight());
        outside.setRoi(new OvalRoi(100, 100, ipByte.getWidth() - 200, ipByte.getHeight() - 200));
        outside.setValue(255);
        outside.fill(outside.getMask());
        timer.start();
        testOutside(outside);
        final long t = timer.stop();
        System.out.println(i + ": " + t + "ms");
    }
// System.out.println( "byte integral" );
// final ByteProcessor ipByteI = ( ByteProcessor )ipShort.convertToByte( true );
// 
// for ( int i = 0; i < 10; ++i )
// {
// timer.start();
// testByteIntegral( ipByteI );
// final long t = timer.stop();
// System.out.println( i + ": " + t  + "ms" );
// }
}

Example 70 with ByteProcessor

use of ij.process.ByteProcessor in project TrakEM2 by trakem2.

the class DownsamplerTest method testShortAlphaByteMappingIndependently.

/**
 * Test downsampling the pyramid of a short image + byte alpha channel
 * including the byte mapping of the short all in separate loops.
 *
 * @param ba
 */
private static final void testShortAlphaByteMappingIndependently(ShortProcessor sp, ByteProcessor alpha) {
    ByteProcessor bp;
    while (sp.getWidth() > 32) {
        sp = Downsampler.downsampleShortProcessor(sp);
        bp = (ByteProcessor) sp.convertToByte(true);
        alpha = Downsampler.downsampleByteProcessor(alpha);
    // new ImagePlus( "pixels " + ba.a.getWidth(), ba.a ).show();
    // new ImagePlus( "pixels to byte " + ba.a.getWidth(), new ByteProcessor( ba.a.getWidth(), ba.a.getHeight(), ba.b[ 0 ], null ) ).show();
    // new ImagePlus( "alpha " + ba.a.getWidth(), new ByteProcessor( ba.a.getWidth(), ba.a.getHeight(), ba.b[ 1 ], null ) ).show();
    }
}