Psy 221 Project Report

Median Interpolation



According to the median algorithm, the missing color information at each pixel is estimated by the median of its surrounding pixels of that particular missing color. For example, for a pixel location containing red information only, the missing green value is estimated by the median of the four (except on borders) neighboring green pixel values, and the missing blue value by the median of the four adjacent blue pixel values. Note that neighboring can be horizontal, vertical, or diagonal. Red and blue pixels have similar geometry. For green pixels, the missing blue information is estimated by the median (or average) of the two (except possibly on the borders) adjacent blue pixel values, likewise for the missing red information.