Common file extensions are: This format was originally developed for IRIX.
The master files of the SVT High Definition Multi Format Test Set are SGIs.
[6][7][8] Frame 200 of the ParkJoy sequence in this set (15722.sgi, 3840×2160, 47.4 MB) was used in WebP comparisons.
Since SGI uses unsigned char or short types for channels, the smallest possible value is typically 0.
Since SGI uses unsigned char or short types for channels, the largest possible value is typically 0xff for 8 bit/channel and 0xffff for 16 bit/channel.
If the name is shorter than 79 characters, all subsequent bytes are to be 0x00 in order to fill the 80-byte space.
of channels) × 4 bytes long This table holds the size of the compressed data (unsigned int) of each scanline.
If the number of bytes per channel is 1, the compressed data is of unsigned char type.
Otherwise, if the number of bytes per channel is 2, the compressed data is of unsigned short type.