Amit Agrawal: Software: Matlab and C Codes

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Robust Surface Reconstruction from 2D Gradient Fields
   (ECCV 2006 and ICCV 2005 paper)
   Matlab code for
    A fast 2D Poisson Solver in Matlab using Neumann Boundary conditions
        Implementation of Frankot-Chellappa Algorithm
        Robust surface reconstruction using M-estimators
        Anisotropic surface reconstruction

Illumination Invariant Image Differencing, Edge Suppression
   (CVPR 2006 paper)
   Matlab code and images for
      Removing shadows using flash/no-flash images
        Removing glass reflections using flash/no-flash images
        Background subtraction in case of strong illumination changes

C Implementation (.NET build) of 2D Poisson Solver using Neumann Boundary Conditions
    C Code
    Based on a direct analytical solution using sine transforms
        Single iteration, no magic numbers, no convergence issues
        Extremely fast. Couple of seconds for 1M pixel image

C++ Implementation of Poisson Solver using Successive Over Relaxation (SOR) (Written by Prof. Jack Tumblin, Northwestern University)
C++ Code