Total neophyte here, although I did take a 15-hour tutorial and have checked the FAQs; thanks in advance for your patience. I have a jpeg image of hand-lettered black text on a white ground. I want to change the black text to blue and the white ground to yellow. Here's what I did:
1. I bring the image into AD by dragging it into the AD icon on my Mac dock. (I note it registers as a background.)
2. Change to pixel persona
3. <Select sample color> and <Apply>. AD automatically selects the white ground.
4. <Invert pixel selection> so AD selects the black text
5. Apply a mask to remove the black text. (I note the black text now looks like a clear-ish checkerboard and the white ground looks like a greyed out checkerboard, not what I expected.)
At this point I thought I might be able to swap in a color of my choice to replace the black text with a color (using the color picker tool), and repeat the process for the white ground and swap in a different ground color, maybe by slipping a blue "background" behind the deleted text and white ground, thus turning the text blue. No such luck. Or do something with transparency, or ... ? Not sure if I just don't know how to do it or if it can't be done. Manually selecting text with a selection brush would not be worth the effort.
Suggestions most welcome. Thank you!