Effect of Pre-Processing on Historical Sanskrit Text Document
Kavitha Sunil, K. P. Soman, Sreedhanya A.V., Kavitha Balakrishnan · 2012
In this paper, the effect of pre-processing on binarization is explored. Here, pre-processing and binarization operations are performed on a historical Sanskrit text document. After scanning, pre-processing operations are applied on the image to remove noise. Pre-processing techniques play an important role in binarization. Newly developed pre-processing techniques are Non Local means and Total Variation methods. Total Variation methods are motivated by the developments in compressive sensing methods like 1 l optimization. Binarization is used as a pre-processor before OCR, because most OCR packages work only on black and white images.