| 摘要 |
A method for detecting and repairing vertical scratches in a digital image. The method comprises the steps of detecting positions of pixels having a significant value deviation from a horizontally averaged value. The number of detected positions within a pre-defined distance in the same vertical column containing the pixel are counted. A pixel is flagged as a scratch site whenever the count of detected positions exceeds a pre-defined threshold. The flagged pixels are binary mapped, morphologically processed and repaired.
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