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I want to know the difference between the 2D continuous and discrete Gabor filter when it comes to Matlab implementation. I found many files related to 2D Gabor filter on Mathworks File Exchange but I am unable to find any file related to 2D continuous Gabor wavelet. I want to use continuous Gabor filter to enhance blood vessels in retinal images. Please guide me.

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I think you are interested in the difference between the discrete wavelet transform and the continuous wavelet transform. Try looking up those topics.

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I came to know that technically there's no difference between the 2D discrete and Continuous Gabor filter when it comes to MATLAB every thing is discrete

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