Blue noise Dithering 1 Economic and social effects 1 Error-diffusion 1 Error-optimization 1 Errors 1 Halftoning 1 Image enhancement 1 Monte Carlo 1 Monte Carlo methods 1 Monte carlo 1 Monte-Carlo rendering 1 Perceptual errors 1 Realistic images 1 Rendering 1 Rendering (computer graphics) 1 Visibility 1 blue noise 1 dithering 1 error diffusion 1 halftoning 1 perceptual error 1 rendering 1 sampling 1