This forum is disabled, please visit https://forum.opencv.org
 | 1 | initial version |  |
One of the best for thresholding the text paper for OCR is sauvola method.I have put the source code here.
| | 2 | No.2 Revision |
One of the best for thresholding the text paper for OCR is sauvola method.I have put the source code here.
Edit:
pixel = ( pixel > mean * ( 1 + k * ( standard_deviation / r - 1 ) ) ) ? object : background
Parameter 1: is the k value. The default value is 0.5. Any other number than 0 will change the default value.
Parameter 2: is the r value. The default value is 128. Any other number than 0 will change the default value
Sauvola, J & Pietaksinen, M (2000), "Adaptive Document Image Binarization", Pattern Recognition 33(2): 225-236,
