Image Processing and MatLab (Deconvolution Process)

[ecastro]

I have these two images:

And I have this impulse response function, or the point-spread function (PSF):

The first image is the actual size of the PSF, and the second image has zero pads included.

I tried deconvolving the images this way (with MatLab):

deconvolved_image = ifft2(fft2(blurred_image)./fft2(sample_psf))

The PSF that I used is the PSF with zero pads. However, the deconvolved images are different. The deconvolved image of the first blurred image is correct and I achieved a sharp image, however the second one returns this image:

What could be wrong?

 

[gtoguy97]

It is likely that the PSF with zero pads is not the correct PSF for the second blurred image. The image with zero pads may not accurately represent the actual point-spread function of the second blurred image, so the deconvolution process may not be accurate. You should try using a different PSF or adjusting the parameters of the PSF with zero pads to better match the blur in the second image.