Nov. 21, 2017
2:56 p.m.
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