This directory contains noisy synthetic images. Each image is stored in PGMas well as in BMP format.trin.pgm (resp. trin.bmp) is the original image. Noisy images are producedby adding 0 mean Gaussian noise. The numbers in the image file names after the "trin" prefix denote the noise level in dB. For example trin-3.pgm means -3dB of noise added to the original image.