Removal of Semi-Transparent Blotches in Old Photographic Prints

نویسندگان

  • F. Stanco
  • L. Tenze
چکیده

In this paper a new algorithm to restore semi-transparent blotches (or water blotches) in vintage photographic prints is proposed. It works in two steps: the first stage is based on an additive/multiplicative model the optimal parameters of which are searched for around the area to be restored. The second one performs an interpolation along the gradient direction on the contour. The results obtained show that the stains are completely removed without producing visible artifacts. Semi-transparent blotches, cultural heritage, image restoration, defect detection.

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تاریخ انتشار 2003