A pipelined architecture algorithm for image compression

Abstract

Summary form only given. The article reports a pipelined architecture that can support on-line compression/decompression of image data. Spatial and spectral redundancy of an image data file are detected and removed with a simple and elegant scheme that can be easily implemented on a pipelined hardware. The scheme provides the user with the facility of trading off the image quality with the compression ratio. The basic theory of byte error correcting code (ECC) is employed to compress a pixel row with reference to its adjacent row. A simple scheme is developed to encode pixel rows of an image, both monochrome and colour. The compression ratio and quality obtained by this new technique has been compared with JPEG which shows comparable compression ratio with acceptable quality. The scheme is hardware based for both color and monochrome image compression, that can match a high speed communication link, thereby supporting on-line applications.