A system and method for compressing raster image data that efficiently processes
data that contains the same value for each pixel. Images are compressed according
to the Joint Photographic Experts Groups (JPEG) standard. Raster image data for
an image or single color plane is analyzed and if the image is determined to contain
the same value for each pixel, the processing produces and replicates pre-computed
compressed data output segments that replicate the output of JPEG compression.