| 摘要 |
<P>PROBLEM TO BE SOLVED: To excellently control gradation characteristics of an image signal representing an image including image areas different in feature. <P>SOLUTION: An image display device which displays an image based upon an input image signal is equipped with a feature information acquisition part that predefines n kinds of section patterns sectioning the image represented with the input image signal into a plurality of areas and acquires feature information representing features of area images corresponding to respective areas of each of the n kinds of area groups obtained according to the respective section patterns, and a gradation conversion processing part that defines a control area group newly sectioned according to mutual overlaps of the n kinds of area groups and converts gradations of signal representing control images corresponding to the control areas according to n kinds of pieces of area feature information obtained for the n kinds of areas of the n kinds of area groups specifying the control areas. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
