Ahmed, Mohamed A.; Pitie, Francois; Kokaram, Anil C., Extraction of Non-Binary Blotch Mattes., Image Processing (ICIP), 2009 16th IEEE International Conference on , IEEE Conference on image Processing (ICIP'09)., Cairo, Egypt, IEEE, 2009, 2757 - 2760
Automated blotch removal is important in film restoration and
typically involves a detection/interpolation step. Current algorithms
model the corruption as a binary mixture between
the original, clean images and an opaque (dirt) field. This
typically causes incomplete blotch removal that manifests as
blotch haloes in reconstruction. This paper proposes a new
approach by modeling the corruption as a continuous mixture
between the two components and generating a solution using
a Bayesian framework. We use novel priors, propose a
computationally efficient scheme for implementation and our
results show more complete blotch reconstruction.
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