remove stripe pattern in image taken by microscope
This picture is taken by a microscope.
I want to remove the stripes on it. I have tried DFT but it seems these stripes isn't sharp on spectrum domain.
Any advice?
Answer 1: Remove stripe directly from FFT
When I compute the FFT and we got the following image where we can see the stripe signature (I surrounded it in black).
If I remove it by hand I got that:
We can do better be removing only frequency arroud each maximum in cardinal sine.
Answer 2: Segment stripe
process : FFT -> select stripe frequency -> iFFT -> Threshold The resulting mask contain your stripe. You can substract them from origin image, fill them etc ... FFT with only stripe :
The resulting mask :
Answer 3: Change Capture process
It seem this stripe come from interference between your microscope slide and your cover slip. You can probably remove it by changing you process.