Patent ID: 7736069
Filing Date: 2010-06-15
Classification: G09G,H04N

Abstract:
1. A moving image display apparatus that displays moving images based on moving image data, comprising: an expansion coefficient derivation module that, based on an image feature amount pertaining to a brightness of image data for one frame of the moving image data, derives and outputs an expansion coefficient to be used for brightness range expansion processing that widens the brightness range for the image data, for each frame of the moving image data; a brightness range expansion processor that executes the brightness range expansion processing of the image data based on the expansion coefficient output by the expansion coefficient derivation module; and a scene change detector that detects a scene change indicating that a scene in the moving image has changed, wherein the expansion coefficient derivation module, if the scene change is detected, outputs a current-frame ideal expansion coefficient that is determined according to the image feature amount for a current frame, and if the scene change is not detected, outputs a current-frame corrected expansion coefficient that is obtained by correcting the current-frame ideal expansion coefficient based on a predetermined rule.