- Extension
- .g4
- .mat
- Format
- Binary
- Binary
- Category
- Fax
- Data
- Developer
- Computer Fax Systems (CFS)
- The MathWorks
- Description
- Group 4 (G4) used for black and white lossless compression to maintain high-quality images, commonly used in TIFF format compression by fax machines. A picture is seen as black dots and lines on a blank page; the fewer the dots and lines are, the lesser the file size.
- A MAT-file holds the variables saved from a MATLAB session: numeric arrays such as matrices and images, text, cell arrays and structs. Files saved with -v7.3 are HDF5 files behind a MATLAB header. Unity and Unreal material files use the .mat extension too, but they are a different format.
- MIME Type
- image/g4fax
- application/octet-stream
