FFT with ImageMagick
Posted: 2019-09-23T10:08:31-07:00
Hello,
I have an image I want to denoise using the FFT feature of ImageMagick.
The image:
This is btw taken from a film by German director, Rainer Erler ('Die Delegation'). The 'aliens' are actors with a special make-up. Mr. Erler kindly gave me permission to use this still, which is unfortunately very noisy.
After applying
I got this spectrum
but what areas do I mask out? There are no dots as in the example on the ImageMagick page.
TIA,
Claus
I have an image I want to denoise using the FFT feature of ImageMagick.
The image:
This is btw taken from a film by German director, Rainer Erler ('Die Delegation'). The 'aliens' are actors with a special make-up. Mr. Erler kindly gave me permission to use this still, which is unfortunately very noisy.
After applying
Code: Select all
convert image.jpg -fft \( +clone -write image_phase.png +delete \) +delete -write image_magnitude.png -colorspace gray -auto-level -evaluate log 100000 image_spectrum.png
but what areas do I mask out? There are no dots as in the example on the ImageMagick page.
TIA,
Claus