Method, system, and program for correcting the image quality of a moving image

摘要

An image processing system has a scale-down section for scaling down frames of a moving image to obtain thumbnail images, a temporary correction value calculation section for calculating a temporary correction value by employing a first feature quantity calculated from the thumbnail image by a feature quantity calculation section, and a temporary correction section for calculating a second feature quantity of a temporarily corrected thumbnail image obtained by correcting each thumbnail image with the temporary correction value. The image processing system further has a target feature quantity calculation section for calculating a target feature quantity of each frame so that the second feature quantities vary smoothly in a temporal direction, an object correction value calculation section for calculating an object correction value so that the first feature quantity becomes the target feature quantity, and a correction section for obtaining a corrected moving image by correcting each frame with the object correction value.