Landwehr Digital Arts

The Light Table

Film is not dead. Not yet. I still do some film scans. Nothing like 4x5.

my light table

Pattern Removal: Fast Fourier Transform

Fast Fourier Transform filtering for pattern removal. Some old photo prints have various regular patterns visble in the print. This is a texture that is embossed into the stock the image is printed on.

This is a problem that often comes when restoring old photos. The method used to remove the pattern is a frequency domain filter. In this case I used a Fast Fourier Transform plug-in for Photoshop. The one I use is only available for PC, the 2008 version by Alex Chirokov.

This is a funky old photo that needed restoration. Couldn't even start without getting rid of the embossed pattern.


jamal A FFT beforeafter

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