To give some insight into my dilemma. I made multiple copies of the image named “original” and then proceeded to use the bandpass filter to create layers with specific “bands” of information from the original image. I have all of the “bands” needed to make the original image, however, I can’t seem to compose them back together accurately.
I was told to try gimp’s grain merge a go, but as you can see in the file, it does not look like the original.
@camo_steve Welcome to the forum. I haven’t used bandpass (tutorial) before but it looks more complex than split_details. Grain merge simply won’t do. Please answer the following questions:
Which bandpass filter did you use? G’MIC (GIMP), G’MIC (CLI) or something else?
What settings and workflow did you use? Do you still have the original?
What are you trying to achieve with band separation?