RED                     RED: Regularization by Denoising
cameraman               Photograph of a cameraman
degrade                 Degradation of an image
error                   Error measurements of images
fft_convolve            Convolution of two images via FFT
lenna                   Photograph of Lenna
register                Registration parameter estimation
resample                Resampling of an image
shift                   shifting operator
transform               Transform an image
