- Extension
- .cals
- .vst
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- United States Department of Defense (DoD)
- Truevision
- Description
- The CALS Raster Graphic File, having the extension .cals, is a type of image file format primarily used for the storage and exchange of digital images, especially in the context of technical and engineering documents. Developed in the mid-1980s by the United States Department of Defense, the CALS format was part of an initiative to standardize electronic document management and interchange, particularly for military and government applications.
- Raster image based on the Targa Truevision format; can store data up to 32 bits per pixel, with 24 bits for the RGB information and 8 bits for the alpha channel; may also incorporate lossless RLE compression to reduce the file size.
- MIME Type
- image/cals
- image/x-targa
