发明授权
US08063994B2 Image processing device, image processing method, program, recording medium and integrated circuit
有权
图像处理装置,图像处理方法,程序,记录介质和集成电路
- 专利标题: Image processing device, image processing method, program, recording medium and integrated circuit
- 专利标题(中): 图像处理装置,图像处理方法,程序,记录介质和集成电路
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申请号: US12300713申请日: 2007-04-16
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公开(公告)号: US08063994B2公开(公告)日: 2011-11-22
- 发明人: Yoshiaki Owaki , Yasuhiro Kuwahara
- 申请人: Yoshiaki Owaki , Yasuhiro Kuwahara
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Wenderoth, Lind & Ponack, L.L.P.
- 优先权: JP2006-142492 20060523
- 国际申请: PCT/JP2007/058279 WO 20070416
- 国际公布: WO2007/135822 WO 20071129
- 主分类号: H04N1/405
- IPC分类号: H04N1/405 ; H04N1/409 ; H04N5/21
摘要:
Flicker occurs in a flicker-noticeable area consisting of pixels with no pixel value variations. An image processing device (100) includes a variance calculation unit (101) that obtains a variance of an area consisting of a target pixel and neighboring pixels included in a first frame, and changes, according to the variance, the rate at which an error generated at the target pixel through tone level restriction is distributed within the frame and between frames. The image processing device (100) includes an error diffusion unit (113) that distributes the error generated at the target pixel to the neighboring pixels included in the first frame based on an intra-frame error diffusion rate and an intra-frame error distribution weight, and distributes the error generated at the target pixel to a target pixel and neighboring pixels included in the second frame based on an inter-frame error diffusion rate and an inter-frame error distribution weight.
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