Enhancement of JPEG compression for GPS images

GPS devices typically make use of images that are excessively large to be stored as a Bit Map, so the images are always compressed. The widespread compression technique is JPEG; however JPEG has a disadvantage – JPEG assumes that the average color of beginning of each blocks line is commonly similar to the average color of end of its preceding blocks line. Almost always this assumption is wrong for GPS images. This paper proposes a method to adjust JPEG order of compression to an improved order that is more suitable for GPS images.