A bitmap that is stored in compressed form using the RLE algorithm. SGI chromaticity ranges from 8 to 32 bits/pixel. The format is designed for use on Silicon Graphics workstations. It is also known as Irix RGB or IRIS.
This format is used to display bitmap images in the SunOS operating system. It uses the RLE compression algorithm and supports between 1 and 32 bits per pixel. It can be created in the Unix environment, and it is used for certain types of research projects. It is primarily used on Sun Microsystems computers.