Questions tagged [blur]

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Measuring sharpness/contrast for autofocus

For the implementation of an auto-focus for the raspberry cam I need some measure of image sharpness. I used the following sample picture: The first approach was to compute the shannon entropy of the ...
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How to create synthetic blurred image from sharp image using PSF kernel (in image format)

I tried to create synthetic blurred image from ground-truth image using PSF kernels (in png format), some paper only mentioned that I need to do convolve operation on it, but it's seem to be I need ...