发明名称 |
Image processing apparatus and image processing method for performing correction processing on input video |
摘要 |
An image processing apparatus according to the present invention extracts a characteristic value of a luminance in relation to respective fields of an input video, and determines the presence of a scene change between adjacent fields. A gamma curve is then generated on the basis of the magnitude of the characteristic value. When a difference in the characteristic value between fields is larger than a predetermined value and a scene change does not exist, the gamma curve to be applied to a subsequent field is modified such that the correction characteristic of the gamma curve does not vary rapidly. The luminance is then corrected using the modified gamma curve. |
申请公布号 |
US8334931(B2) |
申请公布日期 |
2012.12.18 |
申请号 |
US20100764384 |
申请日期 |
2010.04.21 |
申请人 |
NISHIO TAISUKE;SHINDO YUUKI;CANON KABUSHIKI KAISHA |
发明人 |
NISHIO TAISUKE;SHINDO YUUKI |
分类号 |
H04N9/64;H04N5/57;H04N7/01;H04N11/20 |
主分类号 |
H04N9/64 |
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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