1. A computer readable storage medium having instructions stored thereon, which when executed by a computer, cause a device to: divide each frame of a moving picture into a plurality of areas, the moving picture consisting of a plurality of frames; detect a change in pixel value between two consecutive frames for each area thereof in the plurality of areas; and decide existence of flicker and if the flicker is of entire flicker type or local flicker type for each frame based on the change in pixel value.