@Override
public void createModel(RectangleLength2D_I32 target) {
float total = 0;
for (int y = 0; y < target.height; y++) {
int index = imageRed.startIndex + (y + target.y0) * imageRed.stride + target.x0;
for (int x = 0; x < target.width; x++, index++) {
int r = imageRed.data[index] & 0xFF;
int g = imageGreen.data[index] & 0xFF;
int b = imageBlue.data[index] & 0xFF;
ColorHsv.rgbToHsv(r, g, b, hsv);
if (hsv[2] < minimumValue) continue;
binsH[(int) (hsv[0] / sizeH)]++;
binsS[(int) (hsv[1] / sizeS)]++;
total++;
}
}
// normalize the sum to one
for (int i = 0; i < binsH.length; i++) {
binsH[i] /= total;
binsS[i] /= total;
}
}
@Override
public float compute(int x, int y) {
int index = imageRed.getIndex(x, y);
int r = imageRed.data[index] & 0xFF;
int g = imageGreen.data[index] & 0xFF;
int b = imageBlue.data[index] & 0xFF;
ColorHsv.rgbToHsv(r, g, b, hsv);
if (hsv[2] < minimumValue) return 0f;
return binsH[(int) (hsv[0] / sizeH)] * binsS[(int) (hsv[1] / sizeS)];
}