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

Example 1 with KernelJAI

use of javax.media.jai.KernelJAI in project vcell by virtualcell.

the class FRAPData method createCircularBinaryKernel.

private KernelJAI createCircularBinaryKernel(int radius) {
    int enclosingBoxSideLength = radius * 2 + 1;
    float[] kernalData = new float[enclosingBoxSideLength * enclosingBoxSideLength];
    Point2D kernalPoint = new Point2D.Float(0f, 0f);
    int index = 0;
    for (int y = -radius; y <= radius; y++) {
        for (int x = -radius; x <= radius; x++) {
            if (kernalPoint.distance(x, y) <= radius) {
                kernalData[index] = 1.0f;
            }
            index++;
        }
    }
    return new KernelJAI(enclosingBoxSideLength, enclosingBoxSideLength, radius, radius, kernalData);
}

Example 2 with KernelJAI

use of javax.media.jai.KernelJAI in project vcell by virtualcell.

the class UShortImage method createCircularBinaryKernel.

public static KernelJAI createCircularBinaryKernel(int radius) {
    int enclosingBoxSideLength = radius * 2 + 1;
    float[] kernalData = new float[enclosingBoxSideLength * enclosingBoxSideLength];
    Point2D kernalPoint = new Point2D.Float(0f, 0f);
    int index = 0;
    for (int y = -radius; y <= radius; y++) {
        for (int x = -radius; x <= radius; x++) {
            if (kernalPoint.distance(x, y) <= radius) {
                kernalData[index] = 1.0f;
            }
            index++;
        }
    }
    return new KernelJAI(enclosingBoxSideLength, enclosingBoxSideLength, radius, radius, kernalData);
}

Example 3 with KernelJAI

use of javax.media.jai.KernelJAI in project vcell by virtualcell.

the class UShortImage method fastDilate.

public static UShortImage fastDilate(UShortImage dilateSource, int radius, UShortImage mask) throws ImageException {
    short[] sourcePixels = dilateSource.getPixels();
    short[] targetPixels = dilateSource.getPixels().clone();
    KernelJAI dilateKernel = createCircularBinaryKernel(radius);
    float[] kernelData = dilateKernel.getKernelData();
    BitSet kernelBitSet = new BitSet(kernelData.length);
    for (int i = 0; i < kernelData.length; i++) {
        if (kernelData[i] == 1.0f) {
            kernelBitSet.set(i);
        }
    }
    boolean bNeedsFill = false;
    for (int y = 0; y < dilateSource.getNumY(); y++) {
        int yOffset = y * dilateSource.getNumX();
        int yMinus = yOffset - dilateSource.getNumX();
        int yPlus = yOffset + dilateSource.getNumX();
        for (int x = 0; x < dilateSource.getNumX(); x++) {
            bNeedsFill = false;
            if (sourcePixels[x + yOffset] != 0) {
                if (x - 1 >= 0 && sourcePixels[(x - 1) + yOffset] == 0) {
                    bNeedsFill = true;
                } else if (y - 1 >= 0 && sourcePixels[x + yMinus] == 0) {
                    bNeedsFill = true;
                } else if (x + 1 < dilateSource.getNumX() && sourcePixels[(x + 1) + yOffset] == 0) {
                    bNeedsFill = true;
                } else if (y + 1 < dilateSource.getNumY() && sourcePixels[x + yPlus] == 0) {
                    bNeedsFill = true;
                }
                if (bNeedsFill) {
                    int masterKernelIndex = 0;
                    for (int y2 = y - radius; y2 <= y + radius; y2++) {
                        if (y2 >= 0 && y2 < dilateSource.getNumY()) {
                            int kernelIndex = masterKernelIndex;
                            int targetYIndex = y2 * dilateSource.getNumX();
                            for (int x2 = x - radius; x2 <= x + radius; x2++) {
                                if (kernelBitSet.get(kernelIndex) && x2 >= 0 && x2 < dilateSource.getNumX()) {
                                    targetPixels[targetYIndex + x2] = 1;
                                }
                                kernelIndex++;
                            }
                        }
                        masterKernelIndex += dilateKernel.getWidth();
                    }
                }
            }
        }
    }
    UShortImage resultImage = new UShortImage(targetPixels, dilateSource.getOrigin(), dilateSource.getExtent(), dilateSource.getNumX(), dilateSource.getNumY(), dilateSource.getNumZ());
    resultImage.and(mask);
    return resultImage;
}

Example 4 with KernelJAI

use of javax.media.jai.KernelJAI in project vcell by virtualcell.

the class FRAPData method fastDilate.

private UShortImage fastDilate(UShortImage dilateSource, int radius, UShortImage mask) throws ImageException {
    short[] sourcePixels = dilateSource.getPixels();
    short[] targetPixels = dilateSource.getPixels().clone();
    KernelJAI dilateKernel = createCircularBinaryKernel(radius);
    float[] kernelData = dilateKernel.getKernelData();
    BitSet kernelBitSet = new BitSet(kernelData.length);
    for (int i = 0; i < kernelData.length; i++) {
        if (kernelData[i] == 1.0f) {
            kernelBitSet.set(i);
        }
    }
    boolean bNeedsFill = false;
    for (int y = 0; y < dilateSource.getNumY(); y++) {
        int yOffset = y * dilateSource.getNumX();
        int yMinus = yOffset - dilateSource.getNumX();
        int yPlus = yOffset + dilateSource.getNumX();
        for (int x = 0; x < dilateSource.getNumX(); x++) {
            bNeedsFill = false;
            if (sourcePixels[x + yOffset] != 0) {
                if (x - 1 >= 0 && sourcePixels[(x - 1) + yOffset] == 0) {
                    bNeedsFill = true;
                } else if (y - 1 >= 0 && sourcePixels[x + yMinus] == 0) {
                    bNeedsFill = true;
                } else if (x + 1 < dilateSource.getNumX() && sourcePixels[(x + 1) + yOffset] == 0) {
                    bNeedsFill = true;
                } else if (y + 1 < dilateSource.getNumY() && sourcePixels[x + yPlus] == 0) {
                    bNeedsFill = true;
                }
                if (bNeedsFill) {
                    int masterKernelIndex = 0;
                    for (int y2 = y - radius; y2 <= y + radius; y2++) {
                        if (y2 >= 0 && y2 < dilateSource.getNumY()) {
                            int kernelIndex = masterKernelIndex;
                            int targetYIndex = y2 * dilateSource.getNumX();
                            for (int x2 = x - radius; x2 <= x + radius; x2++) {
                                if (kernelBitSet.get(kernelIndex) && x2 >= 0 && x2 < dilateSource.getNumX()) {
                                    targetPixels[targetYIndex + x2] = 1;
                                }
                                kernelIndex++;
                            }
                        }
                        masterKernelIndex += dilateKernel.getWidth();
                    }
                }
            }
        }
    }
    UShortImage resultImage = new UShortImage(targetPixels, dilateSource.getOrigin(), dilateSource.getExtent(), dilateSource.getNumX(), dilateSource.getNumY(), dilateSource.getNumZ());
    resultImage.and(mask);
    return resultImage;
}