发明名称 |
IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM |
摘要 |
Color noise is reduced while suppressing the occurrence of color blurring in the vicinity of an edge. An image processing apparatus including: a first determination unit configured to determine whether or not a first area consisting of a plurality of pixels including a pixel of interest is an area in a uniform color for the pixel of interest in input image data; a second determination unit configured to determine whether or not a second area, different from the first area, consisting of a plurality of pixels including the pixel of interest is an area in a uniform color; a setting unit configured to set a reference area consisting of the pixel of interest and adjacent pixels of the pixel of interest for the pixel of interest; and a first correction unit configured to correct the pixel value of the pixel of interest to a value for which noise has been reduced based on the pixel value of the pixel included in the reference area. |
申请公布号 |
US2016260199(A1) |
申请公布日期 |
2016.09.08 |
申请号 |
US201615055891 |
申请日期 |
2016.02.29 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Takahama Atsushi |
分类号 |
G06T5/00;G06T7/40;G06T7/00;G06K9/62;G06T3/40;G06K9/46;G06K9/52 |
主分类号 |
G06T5/00 |
代理机构 |
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代理人 |
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主权项 |
1. An image processing apparatus comprising:
a first determination unit configured to determine whether or not a first area consisting of a plurality of pixels including a pixel of interest is an area in a uniform color for the pixel of interest in input image data; a second determination unit configured to determine whether or not a second area, different from the first area, consisting of a plurality of pixels including the pixel of interest is an area in a uniform color; a setting unit configured to set a reference area consisting of the pixel of interest and adjacent pixels of the pixel of interest for the pixel of interest; and a first correction unit configured to correct the pixel value of the pixel of interest to a value for which noise has been reduced based on the pixel value of the pixel included in the reference area, wherein the setting unit sets:
a predetermined area prepared in advance and consisting of a plurality of pixels as the reference area in a case where the first determination unit determines that the first area is an area in a uniform color; andan area consisting of a plurality of pixels in accordance with determination results by the second determination unit as the reference area in a case where the first determination unit determines that the first area is not an area in a uniform color. |
地址 |
Tokyo JP |