A Sparse Coding Based Approach for the Resolution Enhancement and Restoration of Printed and Handwritten Textual Images

@article{Walha2014ASC,
  title={A Sparse Coding Based Approach for the Resolution Enhancement and Restoration of Printed and Handwritten Textual Images},
  author={Rim Walha and Fadoua Drira and Adel M. Alimi and Frank Lebourgeois and Christophe Garcia},
  journal={2014 14th International Conference on Frontiers in Handwriting Recognition},
  year={2014},
  pages={696-701}
}
Sparse coding has shown to be an effective technique in solving various reconstruction tasks such as denoising, in painting, and resolution enhancement of natural images. In this paper, we explore the use of this technique specifically to deal with low-resolution and degraded textual images. Firstly, we propose a sparse coding based resolution enhancement approach to recover a textual image with higher resolution than the input low-resolution one. It is based on the use of multiple coupled… CONTINUE READING

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