JPEG: The defacto standard for image compression in a digital imaging device. There are several versions of JPEG, some proprietary. JPEG, also known as JFIF takes areas of 8 x 8 pixels and compresses the information to its lowest common value. This is one of the reasons you can get as many images into digital cameras. The results in decompression of the files can cause "blockyness", the "jaggies", or "pixelization" in some digital images. The higher the compression ratio the more the pixelization or blockyness occurs. The greater the pixel count the less pixelization may occur.