int contrast(int pixel, int contrast)
The new pixel color value after contrast is applied.
Applies a simple contrast effect to a given pixel value.
ctl[0]: "Contrast", Range=(-127,128), Val=0 ForEveryTile: { for (y = y_start; y < y_end; y++) { for (x = x_start; x < x_end; x++) { for (z=0; z < 3; z++) { pset(x,y,z, contrast(src(x,y,z), ctl(0))); } } } return true; }
blend, gamma, gray, saturation