G'MIC Fourier Transform

akovia · **Joined:** Jan 15, 2013 **Posts:** 133

GIMP Version: 2.8.10
Operating System: Linux
OS Version: 12.04 LTS
GIMP Experience: Intermediate Level

List any relevant plug-ins or scripts:
G'MIC

Hi,
I'm trying to figure out why this doesn't work on some images. When you click the FT filter from the list, it just displays a transparent preview.

I am using and RGB image and the other FT plugin "Descreen" still works fine so I know it "should" work. I've run into this a few times and just ended up using the Descreen filter instead, but I need the finer control of G'MIC in this situation and it would be nice to get to the root of the problem so I can fix it or learn to avoid it in the future.

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

That is because your image has an alpha-channel.
Try removing the alpha-channel before doing the FFT, and it should be OK I guess.

akovia · **Joined:** Jan 15, 2013 **Posts:** 133

Ronounours wrote:

That is because your image has an alpha-channel.
Try removing the alpha-channel before doing the FFT, and it should be OK I guess.

*Sigh*
I knew it was something simple, but that makes me feel really stupid. :oops:

Thanks Ronounours!