发明名称 |
METHOD FOR DETECTING STREAKS IN DIGITAL IMAGES |
摘要 |
The present invention uses five regions of interest, 4 corners and 1 center to do Fourier Transform analysis to mark rough location of the streaks, if there is any. It sets the small window around the center in each Fourier Transform ROI to zero to mask the cluster of bright points caused by the lens rolloff or other noises. It use iterative linear regression to remove the random outliers and to search the best possible linear pattern. If it finds any streaks, it calculates the angle and converts it to the streak angle in spatial domain. Once a streak is detected, it can be removed by applying an inverse Fourier Transform on the processed magnitude and original phase Fourier Transform images. |
申请公布号 |
WO2007142682(A3) |
申请公布日期 |
2008.03.20 |
申请号 |
WO2006US45815 |
申请日期 |
2006.11.30 |
申请人 |
EASTMAN KODAK COMPANY;WANG, SHEN;ARCHER, GREG, LELAND |
发明人 |
WANG, SHEN;ARCHER, GREG, LELAND |
分类号 |
G06T7/00;G06T5/00;G06T5/10;H04N5/217 |
主分类号 |
G06T7/00 |
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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