Search found 3 matches

by austech360
2019-06-15T09:28:16-07:00
Forum: Users
Topic: Setting an image color curve for three channels individually?
Replies: 4
Views: 2432

Re: Setting an image color curve for three channels individually?

snibgo wrote:
2019-06-15T09:20:16-07:00
I would do it like this:

Code: Select all

magick at8XHKF.png -channel RB -threshold 75% -channel G -evaluate set 0 +channel out.png
Perfect! All I had to do is change 75 to 99 and I got exactly the result I wanted. THANK YOU SOOOO MUCH! You're a LIFE-SAVER!

Much love!
by austech360
2019-06-15T08:24:50-07:00
Forum: Users
Topic: Setting an image color curve for three channels individually?
Replies: 4
Views: 2432

Re: Setting an image color curve for three channels individually?

How about "-range-threshold" for those channels? See http://www.imagemagick.org/script/command-line-options.php#range-threshold and https://imagemagick.org/discourse-server/viewtopic.php?f=4&t=34604 . Thanks for the prompt reply! This seems to only do black and white as far as I can tell. Maybe I d...
by austech360
2019-06-15T02:10:41-07:00
Forum: Users
Topic: Setting an image color curve for three channels individually?
Replies: 4
Views: 2432

Setting an image color curve for three channels individually?

I have the following Curve that I would like to apply to an image by using ImageMagick. This curve removes the green by setting the slope of the Green to 0/0. Then the RED and BLUE follow the points, 0,0 254,0 255,255 https://i.imgur.com/eO2t2jx.png I was able to get the first part. Removing the gre...