The Sauvola adaptive thresholding algorithm did a great job as i tried to clean up scanned text images before OCR processing. It's quick, quite easy to implemen

The Sauvola adaptive thresholding algorithm did a great job as i tried to clean up scanned text images before OCR processing. It's quick, quite easy to implement and produced great results. Here is a sample: http://scikit-image.org/docs/dev/auto_examples/segmentation/plot_niblack_sauvola.html http://scikit-image.org/docs/dev/auto_examples/segmentation/...