File list (Check if you may need any files):
Anscombe
........\Anscombe_inverse_exact_unbiased_Foi.m
........\Anscombe_vectors.mat
DEMO_NLPCA.m
LICENSE.txt
README.txt
data
....\Chandra1.mat
....\images.mat
....\saturn.tif
functions
.........\NL_PCA.m
.........\clustering_litekmeans.m
.........\denoise_clusters.m
.........\gaussian_NL_PCA.m
.........\litekmeans.m
.........\newton_gaussian.m
.........\newton_gaussian.m~
.........\newton_poisson.m
.........\newton_poisson.m~
.........\no_thresholding.m
.........\poisson_NL_PCA.m
.........\reconstruction_gaussian.m
.........\reconstruction_gaussian.m~
.........\reconstruction_poisson.m
.........\reconstruction_poisson.m~
.........\reprojection_UWA.m
.........\reprojection_UWA.m~
.........\spatial_patchization.m
.........\spatial_patchization.m~
tools
.....\knuth_poissrnd.m
.....\plotimage.m
.....\psnr.m