[scikit-image] Image deconvolution ...

[Jerome Kieffer]

Dear all,

I have an image which is "blurred" by a kernel which depends on the
position on the image.
This blurring can be expressed as a sparse matrix (A) multiplication where
only the neighboring pixels have non-null contribution.

Ax = b 

where in addition 
Aij>=0
x >= 0 #non negativity constrain.
b >= 0 # measured signal

Does anyone have some hints on where to start looking at ?
Thanks for your help

-- 
Jérôme Kieffer