Search found 2 matches

by 923882
2017-08-10T09:27:02-07:00
Forum: Users
Topic: Make all colors transparent except for specific colors
Replies: 2
Views: 3253

Re: Make all colors transparent except for specific colors

snibgo wrote: 2017-08-08T05:34:21-07:00 You can make just those colours transparent, with "-transparent rgb(147,151,0)" etc. Then negate the alpha channel.
Thank you :)
by 923882
2017-08-08T01:01:09-07:00
Forum: Users
Topic: Make all colors transparent except for specific colors
Replies: 2
Views: 3253

Make all colors transparent except for specific colors

Hello I'm trying to overlay a rain radar image onto a google map this is the image: http://imgur.com/a/Z2bLT I'm trying to remove all of the colors that are not the colors that indicate rain. What I've previously being doing is finding the RGB values that don't indicate rain and using ImageMagick to ...