Reverse blending modes
This was a thought experiment on the possibility of terminating semi-transparent foreground elements by restoring the remaining underlying colors instead of using inaccurate area replacement tools like the clone stamp tool or color correction.
For this example I had no live update. Images had to be exported seperately and put into Processing where I did the calculation. So it wasn't as intuitive as I imagine it to be.
- Reversing a blending mode can't be done for all blending modes. Those that consists of if/else-statements can't be reversed. Wikipedia lists all blending mode calculations here.
- The higher the opacity of the semitransparent foreground, the harder it gets to restore the right color. Color quantization occurs. The search for the resulting color is limited by the detail of the color depth.
CODED TESTING ENVIRONMENT IN PROCESSING