void drawSpectrum(double h) {
Color c;
for (int x = 5; x < 7; x++) {
for (int y = 0; y < 32; y++) {
float hue = (float) (y / (2 * h) - .15);
c = Color.getHSBColor(hue, 1f, 1f);
setRoi(x * (int) (w / 2), y * (int) (h / 2), (int) w / 2, (int) h / 2);
setColor(c);
fill();
}
}
setRoi(55, 32, 22, 16); // Solid red
setColor(0xff0000);
fill();
setRoi(55, 120, 22, 16); // Solid green
setColor(0x00ff00);
fill();
setRoi(55, 208, 22, 16); // Solid blue
setColor(0x0000ff);
fill();
setRoi(55, 80, 22, 8); // Solid yellow
setColor(0xffff00);
fill();
setRoi(55, 168, 22, 8); // Solid cyan
setColor(0x00ffff);
fill();
setRoi(55, 248, 22, 8); // Solid magenta
setColor(0xff00ff);
fill();
}
void drawColors(int colorWidth, int colorHeight, int columns, int rows) {
w = colorWidth;
h = colorHeight;
setColor(0xffffff);
setRoi(0, 0, 110, 320);
fill();
drawRamp();
resetBW();
flipper();
drawLine(0, 256, 110, 256);
int x = 1;
int y = 0;
refreshBackground();
refreshForeground();
Color c;
float hue, saturation = 1f, brightness = 1f;
double w = colorWidth, h = colorHeight;
for (x = 2; x < 10; x++) {
for (y = 0; y < 32; y++) {
hue = (float) (y / (2 * h) - .15);
if (x < 6) {
saturation = 1f;
brightness = (float) (x * 4 / w);
} else {
saturation = 1f - ((float) ((5 - x) * -4 / w));
brightness = 1f;
}
c = Color.getHSBColor(hue, saturation, brightness);
setRoi(x * (int) (w / 2), y * (int) (h / 2), (int) w / 2, (int) h / 2);
setColor(c);
fill();
}
}
drawSpectrum(h);
resetRoi();
}
ImageProcessor setup(ImagePlus imp) {
ImageProcessor ip;
int type = imp.getType();
if (type != ImagePlus.COLOR_RGB) return null;
ip = imp.getProcessor();
int id = imp.getID();
int slice = imp.getCurrentSlice();
if ((id != previousImageID) | (slice != previousSlice) | (flag)) {
flag = false; // if true, flags a change from HSB to RGB or viceversa
numSlices = imp.getStackSize();
stack = imp.getStack();
width = stack.getWidth();
height = stack.getHeight();
numPixels = width * height;
hSource = new byte[numPixels];
sSource = new byte[numPixels];
bSource = new byte[numPixels];
// restore = (int[])ip.getPixelsCopy(); //This runs into trouble sometimes, so do it the
// long way:
int[] temp = (int[]) ip.getPixels();
restore = new int[numPixels];
for (int i = 0; i < numPixels; i++) restore[i] = temp[i];
fillMask = new int[numPixels];
// Get hsb or rgb from image.
ColorProcessor cp = (ColorProcessor) ip;
IJ.showStatus("Gathering data");
if (isRGB) cp.getRGB(hSource, sSource, bSource);
else cp.getHSB(hSource, sSource, bSource);
IJ.showStatus("done");
// Create a spectrum ColorModel for the Hue histogram plot.
Color c;
byte[] reds = new byte[256];
byte[] greens = new byte[256];
byte[] blues = new byte[256];
for (int i = 0; i < 256; i++) {
c = Color.getHSBColor(i / 255f, 1f, 1f);
reds[i] = (byte) c.getRed();
greens[i] = (byte) c.getGreen();
blues[i] = (byte) c.getBlue();
}
ColorModel cm = new IndexColorModel(8, 256, reds, greens, blues);
// Make an image with just the hue from the RGB image and the spectrum LUT.
// This is just for a hue histogram for the plot. Do not show it.
// ByteProcessor bpHue = new ByteProcessor(width,height,h,cm);
ByteProcessor bpHue = new ByteProcessor(width, height, hSource, cm);
ImagePlus impHue = new ImagePlus("Hue", bpHue);
// impHue.show();
ByteProcessor bpSat = new ByteProcessor(width, height, sSource, cm);
ImagePlus impSat = new ImagePlus("Sat", bpSat);
// impSat.show();
ByteProcessor bpBri = new ByteProcessor(width, height, bSource, cm);
ImagePlus impBri = new ImagePlus("Bri", bpBri);
// impBri.show();
plot.setHistogram(impHue, 0);
splot.setHistogram(impSat, 1);
bplot.setHistogram(impBri, 2);
updateLabels();
updatePlot();
updateScrollBars();
imp.updateAndDraw();
}
previousImageID = id;
previousSlice = slice;
return ip;
}
