An effective pixel area calculating circuit (11) detects position information
indicating the position of a target pixel in a frame. A lacking pixel creating
circuit (12) determines the class of the target pixel from a plurality of
classes in accordance with the position information, then selects a plurality of
pixels from an input image signal as a prediction tap, and carries out arithmetic
processing based on conversion data obtained in advance by learning for each class
and the prediction tap, thus outputting an output image signal of higher quality
than the input image signal.
