1. A system, comprising: a processing component; a difference value module to determine if a color component value of a pixel located at a pixel location remains constant between a first frame and a next frame by calculating a difference value of the color component; a low-difference value module to determine if the pixel is a low-difference pixel by determining if the difference value of the color component is lower than a threshold value; and a motion compensation comparison module to determine if a motion compensation error of the color component is large by comparing the motion compensation error of the color component with an error threshold of the color component.