- Extension
- .bw
- .pgm
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Silicon Graphics, Inc.
- Jef Poskanzer
- Description
- The bw file type is associated with Silicon Graphics RGB, a bitmap image format developed by Silicon Graphics, Inc. (SGI). It is specifically designed for grayscale images, utilizing a single channel to represent varying shades of black and white. The format is known for its use in graphics and visualization applications, especially in environments where Silicon Graphics workstations were prevalent. BW files are capable of storing high-quality images with efficient compression, making them suitable for both professional graphics work and scientific visualization.
- A PGM file is a grayscale image file saved in the portable gray map (PGM) format and encoded with one or two bytes (8 or 16 bits) per pixel. It contains header information and a grid of numbers that represent different shades of gray from black (0) to white (up to 65,536). PGM files are typically stored in ASCII text format, but also have a binary representation.
- MIME Type
- image/x-rgb
- image/x-portable-graymap
