integral - A package containing methods and structures for dealing with integral images

Age	Commit message (Collapse)	Author
2020-07-29	Add test of Sum() that compares against a simple implementation for a ↵	Nick White
	general Gray16 image This is what found the bug which was fixed by commit b9e6c0d3.
2020-07-25	Improve documentation and simplify test code	Nick White

2020-07-23	Add SqImage type, which also implements image.Image and image/draw.Image	Nick White
	This is intended as an alternative to the WithSq and ToSqIntegralImg functionality, though the MeanStdDevWindow function will need to be changed to use it, and it hasn't been heavily tested yet.
2020-07-23	Add Set and NewImage functions to implement image/draw.Image interface	Nick White
	Now the integralimg can be created directly from an image using image/draw.Draw.
2020-07-23	Add first test	Nick White