Linux - SoftwareThis forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
Using GIMP, how do I apply Threshold or Levels to an entire image, meaning all layers throughout the image?
As you can imagine, applying Threshold of a certain value to each layer of a 90-layer image is exceptionally tedious.
PLEASE NOTE: Threshold and Levels are NOT FILTERS, so "Filter All Layers..." would not have anything to do with this problem. I have looked there. I tried it. (Unless you know of some way of making Threshold et alii into a filter.)
Linked layers only applies to some basic transforms, like moving and rotating. So, linking layers will not help.
My image has 65 layers, and I basically gave up and am going through each one sequentially. It's helped to speed things up a little bit to add the Threshold tool to the toolbox:
Dialogs -> Tools -> Click the eye next to Threshold
Still at least 10 seconds per layer...