MrSID

MrSID
Filename extension
.sid
Internet media type
image/x-mrsid, image/x.mrsid, image/x-mrsid-image
Developed byExtensis
Latest release
MG4 (MrSID Generation 4)
Type of formatLossless or lossy bitmap image format
Websitewww.extensis.com/mrsid-file-format

MrSID (pronounced Mister Sid) is an acronym that stands for multiresolution seamless image database. It is a file format (filename extension .sid) developed and patented by LizardTech (in October 2018 absorbed into Extensis) for encoding of georeferenced raster graphics, such as orthophotos.

MrSID originated as the result of research efforts at Los Alamos National Laboratory (LANL).