发明名称 |
IMAGE SHARPENING PROCESSING DEVICE, METHOD, AND SOFTWARE |
摘要 |
<p>Provided is an image sharpening processing device capable of performing image sharpening processing by changing only luminance without changing a hue. The image sharpening processing device includes: a smoothing means for smoothing luminance of an input image and thus obtaining a smoothed image; a subtraction means for subtracting the smoothed image from the luminance of the input image and thus obtaining a difference image; a luminance-linked gain calculation means for calculating a luminance-linked gain from the input image; a first multiplication means for multiplying the difference image by the luminance-linked gain and thus obtaining a multiplication result; an addition means for adding the multiplication result to the luminance of the input image and thus obtaining luminance of an output image; a color difference gain calculation means for calculating a color difference gain from a color difference of the input image and the luminance-linked gain; and a second multiplication means for multiplying the color difference of the input image by the color difference gain and thus obtaining a color difference of the output image.</p> |
申请公布号 |
EP2242020(B1) |
申请公布日期 |
2013.05.08 |
申请号 |
EP20080872187 |
申请日期 |
2008.12.24 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
YAMAZAKI HIDETOSHI |
分类号 |
G06T5/00;G06T5/20;H04N1/409;H04N1/46;H04N1/58;H04N1/60 |
主分类号 |
G06T5/00 |
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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