public void run(String arg) {
ImagePlus imp = WindowManager.getCurrentImage();
if (imp == null) {
IJ.noImage();
return;
}
ImageStack stack1 = imp.getStack();
String fileName = imp.getTitle();
int endslice = stack1.getSize();
ImagePlus imp2 = duplicateStack(imp);
imp2.show();
String duplicateName = imp2.getTitle();
// IJ.showMessage("Box",fileName);
ImageStack stack2 = imp2.getStack();
stack1.deleteSlice(1);
stack2.deleteSlice(endslice);
String calculatorstring =
("image1='"
+ fileName
+ "' operation=Subtract image2="
+ imp2.getTitle()
+ " create stack");
IJ.run("Image Calculator...", calculatorstring);
ImagePlus imp3 = WindowManager.getCurrentImage();
imp3.setTitle(fileName + " DeltaF up");
imp2.getWindow().close();
imp.getWindow().close();
}
/**
* Splits the specified RGB stack into three 8-bit grayscale stacks. Deletes the source stack if
* keepSource is false.
*/
public static ImageStack[] splitRGB(ImageStack rgb, boolean keepSource) {
int w = rgb.getWidth();
int h = rgb.getHeight();
ImageStack[] channels = new ImageStack[3];
for (int i = 0; i < 3; i++) channels[i] = new ImageStack(w, h);
byte[] r, g, b;
ColorProcessor cp;
int slice = 1;
int inc = keepSource ? 1 : 0;
int n = rgb.getSize();
for (int i = 1; i <= n; i++) {
IJ.showStatus(i + "/" + n);
r = new byte[w * h];
g = new byte[w * h];
b = new byte[w * h];
cp = (ColorProcessor) rgb.getProcessor(slice);
slice += inc;
cp.getRGB(r, g, b);
if (!keepSource) rgb.deleteSlice(1);
channels[0].addSlice(null, r);
channels[1].addSlice(null, g);
channels[2].addSlice(null, b);
IJ.showProgress((double) i / n);
}
return channels;
}