/**
* This function produces the Laplacian of input image. See this Neva
*
* @param nImages number of images to be blurred. If 2D image then nImage = 1, if 3D image where
* each image is to processed independently then nImages equals the number of images in the
* volume.
*/
private void calcStoreInDest2D(int nImages) {
int i, s;
int length;
float[] buffer;
float[] resultBuffer;
float lap;
try {
length = srcImage.getSliceSize();
buffer = new float[length];
resultBuffer = new float[length];
fireProgressStateChanged(srcImage.getImageName(), "Calculating the Laplacian ...");
} catch (OutOfMemoryError e) {
buffer = null;
resultBuffer = null;
errorCleanUp("Algorithm Laplacian exportData: Out of memory", true);
return;
}
try {
srcImage.exportData(0, length, buffer); // locks and releases lock
} catch (IOException error) {
displayError("Algorithm Gaussian Blur: Image(s) locked");
setCompleted(false);
destImage.releaseLock();
return;
}
float[] sigs = new float[2];
for (s = 1; (s <= 8) && !threadStopped; s++) {
sigs[0] = s;
sigs[1] = s;
makeKernels2D(sigs);
fireProgressStateChanged(Math.round((float) (s) / 8 * 100));
for (i = 0; (i < length) && !threadStopped; i++) {
lap =
AlgorithmConvolver.convolve2DPtMed(i, srcImage.getExtents(), buffer, kExtents, GxxData);
if (lap > resultBuffer[i]) {
resultBuffer[i] = lap;
}
}
}
if (threadStopped) {
finalize();
return;
}
try {
destImage.importData(0, resultBuffer, true);
} catch (IOException error) {
errorCleanUp("Algorithm Gaussian Blur: Image(s) locked", false);
return;
}
setCompleted(true);
}
/**
* Calculates the Laplacian image and replaces the source image with the new image.
*
* @param nImages number of images to be blurred. If 2D image then nImage = 1, if 3D image where
* each image is to processed independently then nImages equals the number of images in the
* volume.
* @param buffer DOCUMENT ME!
* @param extents DOCUMENT ME!
* @return resultBuffer
*/
private float[] calcInPlace2DBuffer(int nImages, float[] buffer, int[] extents) {
int i, s;
int length;
float[] resultBuffer;
float lap;
try {
if (buffer == null) {
length = srcImage.getSliceSize();
buffer = new float[length];
} else {
length = buffer.length;
}
resultBuffer = new float[length * nImages];
sBuffer = new byte[length * nImages];
if (srcImage != null) {
fireProgressStateChanged(srcImage.getImageName(), "Calculating the Laplacian ...");
} else {
fireProgressStateChanged("Medialness", "Calculating the Laplacian ...");
}
} catch (OutOfMemoryError e) {
buffer = null;
resultBuffer = null;
sBuffer = null;
errorCleanUp("Algorithm Laplacian exportData: Out of memory", true);
return null;
}
try {
if (srcImage != null) {
srcImage.exportData(0, length, buffer); // locks and releases lock
}
} catch (IOException error) {
buffer = null;
resultBuffer = null;
System.gc();
errorCleanUp("Algorithm Laplacian: " + error, false);
return null;
}
float[] sigs = new float[2];
for (s = 1; (s <= 8) && !threadStopped; s++) {
sigs[0] = s;
sigs[1] = s;
makeKernels2D(sigs);
fireProgressStateChanged(Math.round((float) (s) / 8 * 100));
for (i = 0; (i < length) && !threadStopped; i++) {
lap = AlgorithmConvolver.convolve2DPtMed(i, extents, buffer, kExtents, GxxData);
if (lap > resultBuffer[i]) {
resultBuffer[i] = lap;
}
sBuffer[i] = (byte) s;
}
}
return resultBuffer;
}