More information herehttp://people.via.ecp.fr/~remi/soft/gim ... p3#fourier
zip attached includes source (c file) and compiled binary and dll file.
Place both the binary and dll file in your plugins folder the plugin will be located at
Filters>Generic>FFT Forward and FFT Inverse
If you mouse over FFT Forward you get an explanation of what the plugin does for removing moire patterns on images scanned from books.
Fourier-0.4.zip [779.19 KiB]
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For instance i used it to create more texture in my ConformalMap Image.
Before running FFT Forward and FFT Inverse.
After running FFT Forward and FFT Inverse on the same image.