Java Code Examples for ij.process.ColorProcessor#getPixels()
The following examples show how to use
ij.process.ColorProcessor#getPixels() .
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Example 1
| Source File: MatImagePlusConverter.java From IJ-OpenCV with GNU General Public License v3.0 | 6 votes |
|
private static ColorProcessor makeColorProcessor(Mat mat) {
if (mat.type() != opencv_core.CV_8UC3) {
throw new IllegalArgumentException("wrong Mat type: " + mat.type());
}
final int w = mat.cols();
final int h = mat.rows();
byte[] pixels = new byte[w * h * (int) mat.elemSize()];
mat.data().get(pixels);
// convert byte array to int-encoded RGB values
ColorProcessor cp = new ColorProcessor(w, h);
int[] iData = (int[]) cp.getPixels();
for (int i = 0; i < w * h; i++) {
int red = pixels[i * 3 + 0] & 0xff;
int grn = pixels[i * 3 + 1] & 0xff;
int blu = pixels[i * 3 + 2] & 0xff;
iData[i] = (red << 16) | (grn << 8) | blu;
}
return cp;
}
Example 2
| Source File: Util.java From TrakEM2 with GNU General Public License v3.0 | 6 votes |
|
/**
* <p>Transfer and ARGB AWT image into a FloatProcessor with its grey values
* and a FloatProcessor with its alpha values as [0...1].</p>
*
* <p><em>Note</em>, this method currently relies on how ImageJ reuses the
* pixels of an AWT image as generated by {@link Loader#getFlatAWTImage(ini.trakem2.display.Layer, java.awt.Rectangle, double, int, int, Class, java.util.List, boolean, java.awt.Color, ini.trakem2.display.Displayable) Loader.getFlatAWTImage(...)}
* for creating a ColorProcessor. This may change in the future as have
* many things in the past. This method is then the place to fix it.
*
* @param input
* @param output
* @param alpha
*/
final static public void imageToFloatAndMask( final Image input, final FloatProcessor output, final FloatProcessor alpha )
{
final ColorProcessor cp = new ColorProcessor( input );
final int[] inputPixels = ( int[] )cp.getPixels();
for ( int i = 0; i < inputPixels.length; ++i )
{
final int argb = inputPixels[ i ];
final int a = ( argb >> 24 ) & 0xff;
final int r = ( argb >> 16 ) & 0xff;
final int g = ( argb >> 8 ) & 0xff;
final int b = argb & 0xff;
final float v = ( r + g + b ) / ( float )3;
final float w = a / ( float )255;
output.setf( i, v );
alpha.setf( i, w );
}
}
Example 3
| Source File: OpenCLRaycaster.java From 3Dscript with BSD 2-Clause "Simplified" License | 5 votes |
|
public void setBackground(ColorProcessor cp, boolean combinedAlpha, boolean mip, boolean[] useLights, boolean[] colorLUT) {
if(cp == null) {
clearBackground();
setKernel(OpenCLProgram.makeSource(nChannels, false, combinedAlpha, mip, useLights, colorLUT));
return;
}
int[] rgb = (int[])cp.getPixels();
setBackground(rgb, cp.getWidth(), cp.getHeight());
// setKernel(OpenCLProgram.makeSourceForMIP(nChannels, true));
setKernel(OpenCLProgram.makeSource(nChannels, true, combinedAlpha, mip, useLights, colorLUT));
}
Example 4
| Source File: ImagePlusMatConverter.java From IJ-OpenCV with GNU General Public License v3.0 | 5 votes |
|
/**
* Duplicates {@link ColorProcessor} to the corresponding OpenCV image of
* type {@link Mat}.
*
* @param cp The {@link ColorProcessor} to be converted
* @return The OpenCV image (of type {@link Mat})
*/
public static Mat toMat(ColorProcessor cp) {
final int w = cp.getWidth();
final int h = cp.getHeight();
final int[] pixels = (int[]) cp.getPixels();
byte[] bData = new byte[w * h * 3];
// convert int-encoded RGB values to byte array
for (int i = 0; i < pixels.length; i++) {
bData[i * 3 + 0] = (byte) ((pixels[i] >> 16) & 0xFF); // red
bData[i * 3 + 1] = (byte) ((pixels[i] >> 8) & 0xFF); // grn
bData[i * 3 + 2] = (byte) ((pixels[i]) & 0xFF); // blu
}
return new Mat(h, w, opencv_core.CV_8UC3, new BytePointer(bData));
}
Example 5
| Source File: FloatProcessorT2.java From TrakEM2 with GNU General Public License v3.0 | 5 votes |
|
public FloatProcessorT2(final ColorProcessor cp, final int channel) {
this(cp.getWidth(), cp.getHeight(), 0, 255);
final int[] c = (int[])cp.getPixels();
int bitmask = 0;
int shift = 0;
switch (channel) {
case 0: bitmask = 0x00ff0000; shift = 16; break; // red
case 1: bitmask = 0x0000ff00; shift = 8; break; // green
case 2: bitmask = 0x000000ff; break; // blue
}
final float[] pixels = (float[])this.getPixels(); // I luv pointlessly private fields
for (int i=0; i<pixels.length; i++) pixels[i] = ((c[i] & bitmask)>>shift);
super.setMinAndMax(0, 255); // we know them
}
Example 6
| Source File: ArgbRenderer.java From render with GNU General Public License v2.0 | 4 votes |
|
/**
* Converts the processor to an ARGB image.
*
* @param renderedImageProcessorWithMasks processor to convert.
* @param binaryMask indicates whether a binary mask should be applied.
*
* @return the converted image.
*/
public static BufferedImage targetToARGBImage(final ImageProcessorWithMasks renderedImageProcessorWithMasks,
final boolean binaryMask) {
// convert to 24bit RGB
final ColorProcessor cp = renderedImageProcessorWithMasks.ip.convertToColorProcessor();
// set alpha channel
final int[] cpPixels = (int[]) cp.getPixels();
final byte[] alphaPixels;
if (renderedImageProcessorWithMasks.mask != null) {
alphaPixels = (byte[]) renderedImageProcessorWithMasks.mask.getPixels();
} else if (renderedImageProcessorWithMasks.outside != null) {
alphaPixels = (byte[]) renderedImageProcessorWithMasks.outside.getPixels();
} else {
alphaPixels = null;
}
if (alphaPixels == null) {
for (int i = 0; i < cpPixels.length; ++i) {
cpPixels[i] &= 0xffffffff;
}
} else if (binaryMask) {
for (int i = 0; i < cpPixels.length; ++i) {
if (alphaPixels[i] == -1)
cpPixels[i] &= 0xffffffff;
else
cpPixels[i] &= 0x00ffffff;
}
} else {
for (int i = 0; i < cpPixels.length; ++i) {
cpPixels[i] &= 0x00ffffff | (alphaPixels[i] << 24);
}
}
final BufferedImage image = new BufferedImage(cp.getWidth(), cp.getHeight(), BufferedImage.TYPE_INT_ARGB);
final WritableRaster raster = image.getRaster();
raster.setDataElements(0, 0, cp.getWidth(), cp.getHeight(), cpPixels);
return image;
}
Example 7
| Source File: IntegralImageMipMaps.java From TrakEM2 with GNU General Public License v3.0 | 4 votes |
|
@SuppressWarnings({ "unused", "unchecked", "null" })
private static final BufferedImage[] createRGB(
final Patch patch,
final ColorProcessor ip,
final ByteProcessor mask) {
final int w = ip.getWidth();
final int h = ip.getHeight();
final int[] dims = new int[]{w, h};
final ScaleAreaAveraging2d<LongType, UnsignedByteType> saar, saag, saab, saam;
{
// Split color channels
final int[] p = (int[]) ip.getPixels();
final byte[] r = new byte[p.length],
g = new byte[p.length],
b = new byte[p.length];
for (int i=0; i<p.length; ++i) {
final int a = p[i];
r[i] = (byte)((a >> 16)&0xff);
g[i] = (byte)((a >> 8)&0xff);
b[i] = (byte)(a&0xff);
}
//
saar = saa(r, dims);
saag = saa(g, dims);
saab = saa(b, dims);
saam = null == mask? null : saa((byte[])mask.getPixels(), dims);
}
// Generate images
final BufferedImage[] bis = new BufferedImage[Loader.getHighestMipMapLevel(patch) + 1];
//
if (null == saam) { // mask is null
bis[0] = ImageSaver.createARGBImage((int[])ip.getPixels(), w, h); // sharing the int[] pixels
for (int i=1; i<bis.length; i++) {
final int K = (int) Math.pow(2, i),
wk = w / K,
hk = h / K;
// An image of the scaled size
saar.setOutputDimensions(wk, hk);
saar.process();
saag.setOutputDimensions(wk, hk);
saag.process();
saab.setOutputDimensions(wk, hk);
saab.process();
bis[i] = ImageSaver.createARGBImage(
blend(((Array<UnsignedByteType,ByteArray>) saar.getResult().getContainer()).update(null).getCurrentStorageArray(),
((Array<UnsignedByteType,ByteArray>) saag.getResult().getContainer()).update(null).getCurrentStorageArray(),
((Array<UnsignedByteType,ByteArray>) saab.getResult().getContainer()).update(null).getCurrentStorageArray()),
wk, hk);
}
} else {
// With alpha channel
bis[0] = ImageSaver.createARGBImage(blend((int[])ip.getPixels(), (byte[])mask.getPixels()), w, h); // sharing the int[] pixels
for (int i=1; i<bis.length; i++) {
final int K = (int) Math.pow(2, i),
wk = w / K,
hk = h / K;
// An image of the scaled size
saar.setOutputDimensions(wk, hk);
saar.process();
saag.setOutputDimensions(wk, hk);
saag.process();
saab.setOutputDimensions(wk, hk);
saab.process();
saam.setOutputDimensions(wk, hk);
saam.process();
bis[i] = ImageSaver.createARGBImage(
blend(((Array<UnsignedByteType,ByteArray>) saar.getResult().getContainer()).update(null).getCurrentStorageArray(),
((Array<UnsignedByteType,ByteArray>) saag.getResult().getContainer()).update(null).getCurrentStorageArray(),
((Array<UnsignedByteType,ByteArray>) saab.getResult().getContainer()).update(null).getCurrentStorageArray(),
((Array<UnsignedByteType,ByteArray>) saam.getResult().getContainer()).update(null).getCurrentStorageArray()),
wk, hk);
}
}
return bis;
}
Example 8
| Source File: IntegralImageMipMaps.java From TrakEM2 with GNU General Public License v3.0 | 4 votes |
|
private static final ImageBytes[] fastCreateRGB(
final Patch patch,
final ColorProcessor ip,
final ByteProcessor mask) {
final int w = ip.getWidth();
final int h = ip.getHeight();
final long[] ir, ig, ib, im;
{
// Split color channels
final int[] p = (int[]) ip.getPixels();
final byte[] r = new byte[p.length],
g = new byte[p.length],
b = new byte[p.length];
for (int i=0; i<p.length; ++i) {
final int a = p[i];
r[i] = (byte)((a >> 16)&0xff);
g[i] = (byte)((a >> 8)&0xff);
b[i] = (byte)(a&0xff);
}
//
ir = FastIntegralImage.longIntegralImage(r, w, h);
ig = FastIntegralImage.longIntegralImage(g, w, h);
ib = FastIntegralImage.longIntegralImage(b, w, h);
im = null == mask ? null : FastIntegralImage.longIntegralImage((byte[])mask.getPixels(), w, h);
}
// Generate images
final ImageBytes[] bis = new ImageBytes[Loader.getHighestMipMapLevel(patch) + 1];
//
if (null == mask) {
bis[0] = new ImageBytes(P.asRGBBytes((int[])ip.getPixels()), ip.getWidth(), ip.getHeight());
for (int i=1; i<bis.length; i++) {
final int K = (int) Math.pow(2, i),
wk = w / K,
hk = h / K;
// An image of the scaled size
bis[i] = new ImageBytes(new byte[][]{FastIntegralImage.scaleAreaAverage(ir, w+1, h+1, wk, hk),
FastIntegralImage.scaleAreaAverage(ig, w+1, h+1, wk, hk),
FastIntegralImage.scaleAreaAverage(ib, w+1, h+1, wk, hk)},
wk, hk);
}
} else {
// With alpha channel
bis[0] = new ImageBytes(P.asRGBABytes((int[])ip.getPixels(), (byte[])mask.getPixels(), null), ip.getWidth(), ip.getHeight());
for (int i=1; i<bis.length; i++) {
final int K = (int) Math.pow(2, i),
wk = w / K,
hk = h / K;
// An image of the scaled size
bis[i] = new ImageBytes(new byte[][]{FastIntegralImage.scaleAreaAverage(ir, w+1, h+1, wk, hk),
FastIntegralImage.scaleAreaAverage(ig, w+1, h+1, wk, hk),
FastIntegralImage.scaleAreaAverage(ib, w+1, h+1, wk, hk),
FastIntegralImage.scaleAreaAverage(im, w+1, h+1, wk, hk)},
wk, hk);
}
}
return bis;
}
