发明名称 |
Apparatus and method for adjusting sharpness of image |
摘要 |
A method for adjusting a target gray level of a target pixel based on a spatial mask is provided. The target pixel is surrounded with N adjacent pixels; each of the N adjacent pixels respectively has an adjacent gray level. The method first multiplies the target gray level with a sharpness index to generate an amplified target gray level and respectively multiplies each of the adjacent gray level with an adjacent index to generate N modified adjacent gray levels. Then, the amplified target gray level and the N modified adjacent gray levels are added up to generate a first gray level sum. The method multiplies the first gray level sum with a multiplying parameter to generate a second gray level sum. At last, the method divides the second gray level sum by a dividing parameter to generate an adjusted gray level for the target pixel. |
申请公布号 |
US7545539(B2) |
申请公布日期 |
2009.06.09 |
申请号 |
US20060454977 |
申请日期 |
2006.06.19 |
申请人 |
MARKETECH INTERNATIONAL CORP. |
发明人 |
KAO HSU-PIN;TSAI TSAN-HUNG;SHAN YI-CHIA;HSU KAI-HSIANG;KAO HSU-CHIA |
分类号 |
H04N1/409;G06T5/00 |
主分类号 |
H04N1/409 |
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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