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The physical construction of a source to be scanned may make it hard or impossible to end up with an upright image. But the task of extracting characters from an image is complicated by allowing for a rotated image. Hence this program to turn rotated images upright.
By default, the name of the output file is the same as the input file; both are extended with `.img' if necessary. If this would result in the output overwriting the input, `x' is prepended to the output name.
7.1.1 Clockwise rotation Rotating clockwise. 7.1.2 Flip rotation FLipping end-for-end.