How can I clear the noise from a picture

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geometry geometry
geometry geometry on 30 Jun 2018
Commented: Image Analyst on 1 Jul 2018
Assume that a picture is multiplied by the noise sin(Ax+By). how can I clear the noise using deconvolution?

Answers (1)

Image Analyst
Image Analyst on 30 Jun 2018
The easiest thing to to not use convolution and just divide by the known pattern. Any reason why you're not doing that?
Otherwise you can find the low frequency spikes in the Fourier domain and erase them. See attached demos.

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