Document Images Restoration by a New Tensor Based Diffusion Process: Application to the Recognition of Old Printed Documents

@article{Drira2009DocumentIR,
  title={Document Images Restoration by a New Tensor Based Diffusion Process: Application to the Recognition of Old Printed Documents},
  author={Fadoua Drira and Frank Lebourgeois and Hubert Emptoz},
  journal={2009 10th International Conference on Document Analysis and Recognition},
  year={2009},
  pages={321-325}
}
A modification of the Weickert coherence enhancing diffusion filter is proposed for which new constraints formulated form the Perona-Malik equation are added. The new diffusion filter, driven by local tensors fields, takes benefit from both of these approaches and avoids problems known to affect them. This filter reinforces character discontinuity and eliminates the inherent problem of corner rounding while smoothing. Experiments conducted on degraded document images illustrate the… CONTINUE READING

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