autocrop_remove_bg functions, and set it to 0.95 (instead of 0.90) for foldouts. This allows autocrop to detect the outside edges of folios more accurately. See items kempnerfamilyb013f001_0001 and manfredlewandowsb001f013 for examples.
problems when a small piece of paper was imaged against a large, black background with lots of glare. For an example, see testimg_foldout/manfredlewandowsb001f013_raw_0002.JPG
Update README with build and test instructions.
…e should deskew or not (default=1).
search range was causing problems on pages with graphics
and also write better debug images.
run FindInnerCrop code to after finding clean lines
This seems to give better results for images with lots of leaf edges showing.