Greetings,
How can I increase or decrease the RGB or HSV values of a group of pixels in a selected area by the same amount? For instance, I need to increase one region's brightness by 17 on the HSV scale to make it match another region; however, neither the Brightness / Contrast tool, nor the Hue / Saturation tool seem to increase or decrease these values by any calculation that I can thus far figure out (I apologize in advance if the answer is simple; I've been at this for over 16 hours). Much of my work has thus been trial and error to find the right amount to increase or decreas
