utils - Packages and tools for image preprocessing

Age	Commit message (Collapse)	Author
2019-10-08	Remove parts that have been moved elsewhere, and rename to rescribe.xyz/utils	Nick White
	bookpipeline is now at rescribe.xyz/bookpipeline preproc is now at rescribe.xyz/preproc integralimg is now at rescribe.xyz/preproc/integralimg
2019-09-27	One more update of graph.go to correspond to new go-chart, and improve usage ↵	Nick White
	for wipe
2019-06-03	Add -m option to wipe to set minimum content area for wipe to proceed	Nick White
	If content is very light or sparse it may be better to not wipe at all than wipe almost all of the content leaving a small strip. This is done now by aborting the wipe if the detected content takes up less than the minimum % of the page (default is 30%).
2019-05-13	Rename cleanup to wipe, and only export main function	Nick White