A resolution increasing apparatus including: a motion image decoding unit that sets a reference frame and a pixel of attention; a provisional-high-resolution-image generating unit that generates a provisional high-resolution image having the number of pixels larger than that of the reference frame; a determining unit that determines whether correction of a pixel value of a corresponding position of the provisional high-resolution image corresponding to the pixel of attention should be performed; and a high-resolution-image correcting unit that performs, when the determining unit determines that the correction is performed, predetermined correction processing and outputs, when the determining unit determines that the correction is not performed, the pixel value of the corresponding position of the provisional high-resolution image as a high-resolution image.