preproc - Miscellaneous OCR related utilities and packages

Age	Commit message (Collapse)	Author
2020-08-04	Improve sauvola window code slightly	Nick White
	The sauvola and integral image version are still slightly different, irritatingly.
2020-07-27	Update wipesides and pggraph to new functions in integralimg, and remove ↵	Nick White
	experimental splittable
2020-07-23	Update to v0.2.1 of integralimg, and improve various things	Nick White
	- Improve integral sauvola by rounding threshold correctly - The Sauvola functions can now process any image.Image, not just an image.Gray - Add ImageWindower interface and use it to generalise wipesides.go - Rely on Bounds() for image bounds rather than implementation- specific stuff in integralimg Note that a couple of the wipesides tests are now failing. It's possible that this is due to fixed or introduced bugs (let's hope the former) changing sensible thresholds. Will need to look into this and sort it.
2020-05-04	Have wipefile do vertical as well as horizontal wipingv0.1.3	Nick White

2020-04-14	Improve documentation throughout	Nick White

2020-02-26	Add README and GPLv3 LICENSE and mention license in every source file	Nick White

2019-10-08	Continue separating the repository; remove all but preproc, and move ↵	Nick White
	integralimg package under it