发明名称 METHOD, CIRCUIT AND PROGRAM FOR CONTOUR COMPENSATION AND VIDEO SIGNAL DISPLAY DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a contour compensating method, contour compensation circuit and contour compensation program capable of suppressing coloring and compensating a contour even in a four-plate pixel shifting system and to provide a video signal display device. SOLUTION: This contour compensation circuit 1 individually compensates a video signal level of a contour for each color with a first reference channel and a second reference channel of a video signal for displaying video in order to prevent coloring that occurs near the contour in enhancing the contour of a contour enhancement target in the video with the four-plate pixel shifting system. The contour compensation circuit 1 is provided with an inverse gamma correcting part 3, a contour compensation signal generating part 5, an adjustment signal generating part 7, a contour compensation signal delaying part 9 and an inverse gamma correction signal delaying part 11 and a calculating part 13. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004088497(A) 申请公布日期 2004.03.18
申请号 JP20020247628 申请日期 2002.08.27
申请人 NIPPON HOSO KYOKAI <NHK> 发明人 YAMASHITA TAKAYUKI;SUGAWARA MASAYUKI;OKANO FUMIO
分类号 H04N9/68;H04N5/208;(IPC1-7):H04N9/68 主分类号 H04N9/68
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