This is the display format associated with the broadcast of slow-scan television. This legacy format was used to transmit a static image given limited bandwidth through the use of specialized software.
JP2 is a bitmap image format JPEG 2000. This can be a picture, an image from a surveillance camera, digital fax and other. In JPEG 2000 to compress the file using the technology of wavelet transform. This allows for a smoother and sharper image and the file size compared to JPEG for the same quality is lower.