发明名称 |
IMAGE PROCESSING DEVICE AND METHOD, AND IMAGE PROCESSING PROGRAM |
摘要 |
An NR coefficient (Kf) is calculated on the basis of a representative value (Pm) of a pixel of interest and a low-pass filtered value (La-Ld) nearest to the representative value (Pm) of the pixel of interest among a plurality of low-pass filtered values filtered one-dimensionally in different directions in an input image, and the pixel value of the pixel of interest and a value output by a two-dimensional low-pass filter (25) are weighted by the NR coefficient (Kf) and added (36). The representative value of the pixel of interest may be, for example, a median value obtained by filtering the current frame and a past frame in the time axis direction. The image processing device reduces noise without lowering resolution. |
申请公布号 |
EP2835963(B1) |
申请公布日期 |
2017.03.22 |
申请号 |
EP20130772701 |
申请日期 |
2013.02.21 |
申请人 |
Mitsubishi Electric Corporation |
发明人 |
AOKI, Toru;HASHIMOTO, Mitsuo;MATOBA, Narihiro |
分类号 |
H04N5/232;G06T5/00;G06T5/20;H04N5/217;H04N5/357 |
主分类号 |
H04N5/232 |
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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