发明名称 |
Video signal contour corrector |
摘要 |
A gray scale correction unit intended to provide a gray scale correction unit for preventing aliasing-like noise generation and gray-scale degradation of a gradation portion adaptively controls a correction value in accordance with the slope of a video signal, detects generation of aliasing-like noise, steepens an edge having a large amplitude without deterioration in the image quality, and improves a spatial frequency of the video signal.
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申请公布号 |
US2003156224(A1) |
申请公布日期 |
2003.08.21 |
申请号 |
US20030332127 |
申请日期 |
2003.03.04 |
申请人 |
ISHIKAWA YUICHI;SHINBA MITSUAKI |
发明人 |
ISHIKAWA YUICHI;SHINBA MITSUAKI |
分类号 |
H04N5/208;(IPC1-7):H04N5/21 |
主分类号 |
H04N5/208 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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