Xerox scanners/photocopiers randomly alter numbers in scanned documents (2013)
I find compression algorithms to be frustratingly bad.<p>For example, my scanner has an 8 color compression mode. Great! So I scan in a piece of paper printed in 3 colors - black, white, and, say, green. The green comes out as a dithering of multiple colors. Why can't the compression format figure out what are the dominant 8 colors in the scan, put out a table of the RGB values of those 8 colors, then compress to 8 colors? This would look and work great for an awful lot of scans.<p>Another problem is b/w photos mixed with text. Setting the scanner to staic level black/white pixesl works great for text, but terrible for photos. Setting it to greyscale works great for photos, but terrible for text. Oh how I wish it would recognize greyscale areas and use greyscale for them, and black on white text areas and use static black/white pixels for them.