A Robust OCR for Degraded Documents
In the last two decades, many advances have been made in the field of document image analysis and recognition. In the recent past, several methods for recognizing Latin, Chinese, Japanese, and Arabic scripts have been proposed [7–9]. Until now, most of the OCR work has concentrated on high quality images and great success has been achieved by character recognition systems. Apart from these successes, there still exist two challenging problems in the field of recognition. The first one is optical character recognition (OCR) for low-quality images. Images having luminance variations, noise, and random degradation of text are difficult to read by OCR systems. The second open problem is that of recognizing off-line cursive handwritten character recognition . Our work concentrates on the former one particularly for Devanagari script, which is the script for Hindi, Nepali, Marathi, and several other Indic languages. Together, these languages have a user base exceeding 500 million people.
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