Compression of form images in gray-level

摘要

A method for compressing an electronic image of an object including gray-level information includes processing the gray-level information to identify a kernel of pixels in the image having respective gray-level values darker than a given kernel threshold. A locus of the pixels in the kernel is stored in a memory, along with the gray-level values of the pixels in the kernel, in order to reconstruct a gray-level image of the object by applying the stored gray-level values to the pixels in the locus.