grunch is a package of scripts and software which can take a pair of side-by-side partial scans of an image, and merge them into a single image without leaving an obvious seam. It was written to allow LP record jackets to be scanned using an ordinary single-page flatbed scanner. It requires the pbmplus/netpbm tools, and the bash shell. grunch should compile and run correctly on almost any Unix-type O/S which supports these tools.
