03-27-2018, 05:58 PM
(03-27-2018, 05:09 PM)rich2005 Wrote: Should work using Colours -> Info -> Histogram
A made up 800x800 image - histogram shows number of pixels https://i.imgur.com/ilnybYg.jpg
Colour-select the black for the number of pixels https://i.imgur.com/Xsoivt7.jpg
Thanks, this helps me understand how to get pixel counts by selecting colors on the pic. Even though we used a black background, there are variations of black due to light. So I still can't get a complete count of black pixels. I tried this technique in histogram after applying the threshold tool, but obv. I'm not understanding what threshold is for or how to use it because I cant count pixels of black or white.
If I can't figure out a way with Gimp I will try the other source you sent. I have to go through justifications and admn approvals and downloads for any software, even to just try it to see if it works, so I have to keep trying Gimp.
Mo