6
votes
3answers
4k views

Batch replacing color with transparency

I have a very large number of PNG images (too many to practically do one at a time) with a bright pink background and would like to replace the background color with transparency. If this is not ...
1
vote
1answer
219 views

Black-white and grayscale to alpha conversion for images

Is there an utility for converting all black-white and grayscale images from certain folder to the same images with adjusted alpha channel? For example, for pixel (r:50, g:50, b:50, a:0) I would like ...