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Handling noise in textual image resolution enhancement using online and offline learned dictionaries.
Resolution enhancement of textual images: a survey of single image-based methods.
Resolution enhancement of textual images via multiple coupled dictionaries and adaptive sparse representation selection.
Joint denoising and magnification of noisy Low-Resolution textual images
Sparse Coding with a Coupled Dictionary Learning Approach for Textual Image Super-resolution
A Sparse Coding Based Approach for the Resolution Enhancement and Restoration of Printed and Handwritten Textual Images.
Multiple Learned Dictionaries Based Clustered Sparse Coding for the Super-Resolution of Single Text Image
Single Textual Image Super-Resolution Using Multiple Learned Dictionaries Based Sparse Coding.