IMAGE QUALITY EVALUATION DEVICE, TERMINAL DEVICE, IMAGE QUALITY EVALUATION SYSTEM, IMAGE QUALITY EVALUATION METHOD AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To evaluate the quality of an image shot by a terminal device in a state closer to that seen with the eye. SOLUTION: A computer 3 evaluates the quality of an image obtained by shooting a photographic subject including a periodic pattern which fluctuates periodically in one direction. A Fourier transform part 51 executes a two-dimensional Fourier transform on the image to obtain two-dimensional spatial frequency spectrum components. An analysis part 52 analyzes the sense of resolution of the image on the basis of spectrum components of spatial frequencies included in the periodic pattern, among the two-dimensional spatial frequency spectrum components obtained by the Fourier transform part 51, and analyzes the deterioration of the image on the basis of spectrum components other than these. COPYRIGHT: (C)2011,JPO&INPIT