发明名称 |
Contour correction device |
摘要 |
Filtration of an input signal implemented in the horizontal or vertical direction may disorder the gradation in oblique directions, so that oblique lines may become jagged. To deal with this situation, the following components are provided to process the input signal: a waveform correcting means (6) having a correcting characteristic that the slope for correction in the medium-luminance range is greater than that in the high-luminance range or in the low-luminance range; a processing means (7) for extracting the deviation of the input signal processed by the waveform correcting means; a picture edge strength detecting means (1); and a processing means (8) for performing operations based on the deviation of the input signal and the picture edge strength.
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申请公布号 |
US2002181800(A1) |
申请公布日期 |
2002.12.05 |
申请号 |
US20020148424 |
申请日期 |
2002.05.30 |
申请人 |
HAMADA SHOHICHI;ISHIMOCHI HARUKI |
发明人 |
HAMADA SHOHICHI;ISHIMOCHI HARUKI |
分类号 |
H04N5/208;H04N5/262;(IPC1-7):G06K9/48 |
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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