An automatic process for performing CMY (Cyan, Magenta, Yellow) registration for film digital restoration. After three color components Cyan, Magenta, and Yellow of a picture are scanned into files, each component is divided into blocks, and edge detection is applied to each block, and an edge match is performed. The data of displacements is processed, and then affine transform parameters are calculated. The affine transform is then applied for each block, and warping is used to combine the color components and obtain the registered picture of a color component.