Legacy ImageMagick Discussions Archive

My question was more along the lines of the difference between add, Plus, subtract, and MinusSrc. Are they the same for the operations they perform? I want to keep my code as similar to the functionality that existed before, so want to choose the right one.

Also, what's the difference between what you have and this? int status = execl("/usr/bin/composite", "composite", "temp_in1.pgm", "temp_in2.pgm", "-compose", "plus", "temp_out.pgm", (char*)NULL); int status = execl("/usr/bin/composite", "composite", "temp_in1.pgm", "temp_in2.pgm", "-compose ...

Yeah, this was last worked on 10 years ago. And I figured it out too. Just a silly logical error. Thanks!

Hi all, I'm new to ImageMagick as I have just started working on an image analysis project. I've working with some existing, but old, code for working with these images. I'm trying to understand how to add and subtract images as a test run with the code. Before, it looked like this: if (chosen ...