This format is used as the color palette format for a variety of operating system image editors. It is used to store font templates in text and graphic editors. It allows you to change color intensity and transparency levels.
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.