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Posted: 31 Dec 2014, 04:54
most interresting. At the same time I point in variant of Howe's algorithm to the 'R' of learned which has been degraded but with good chances to still be recognised. I notice that the 'h' in the 'the' before 'sacrif' is lost in all cases and may be translated as 'tlie' unless the OCR resort to a dictionary and grammar which I don't know if any of them do it.
Posted: 24 Jul 2015, 04:34
A basic description of different binarization algorithms: https://docs.google.com/presentation/d/ ... ide=id.i39
. Nothing new, but gives a good overview.
Posted: 25 Jul 2015, 07:29
Interested to see that there are methods optimised for uneven illumination, as that seems particularly relevant for processing camera images.
Posted: 28 Jul 2015, 15:31
An online algorithm "Efficient Multiscale Sauvola's Binarization": https://olena.lrde.epita.fr/demos/sauvola_ms.php
All the source: https://www.lrde.epita.fr/wiki/Olena/Download
, and specifically the source code for various binarization algorithms: http://git.lrde.epita.fr/?p=olena.git;a ... on;hb=HEAD
Posted: 29 Jul 2015, 14:14
I like the results I'm getting with the binarizewolfjolion program, available from Christian Wolf's website: http://liris.cnrs.fr/christian.wolf/software/binarize/
. The latest versions use opencv for image manipulation. I'm not sure if it builds under cygwin; I only run it on my linux machine.