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## Dabbling with Weiner filter using OpenCV
The technique of reduction of blur and restoration of images is an extremely important field of study and finds numerous applications in medical imaging and astronomy. One such technique is Wiener filter named after the originator of the technique Prof. Norbert Wiener (1894-1964). It is usually important to consider these techniques in the frequency domain. This can be represented diagrammatically as follows Given that we have b(x,y) = i(x,y) * k(x,y) + n(x,y) – (1) where b(x,y) is the blurred image,... [More]
Tags: dft weiner inverse-dft filter opencv |

## Experiments with deblurring using OpenCV
Deblurring refers to the removal of the blur from blurred images. The removal of blur is extremely important in the fields of medical imaging, astronomy etc. In medical imaging this is also known as denoising and finds extensive applications in ultra sonic and CT images. Similarly in astronomy there is a need to denoise and deblur images that are taken by space telescopes for e.g. the Hubble telescope. Deblurring is really a tough problem to solve though it has been around for ages. While going through some of the white papers on deblurring I... [More]
Tags: radon kernel deblur inverse-dft dft fourier |