FBM image

FBM image (also called Fuzzy Bitmap or Fuzzy Pixmap) is a raster image file format associated with the Fuzzy Pixmap Manipulation Library. It supports a variety of color formats, including truecolor, grayscale, and palette color.

Format
FBM files have a 256-byte header, composed of fixed-length ASCII text fields.

Identification
Files begin with the ASCII signature " ", followed by a NUL byte.

Specifications

 * fbm-1.2.tgz → fbm.h defines the header format (search for "fbm_filehdr_struct")

Sample files

 * https://telparia.com/fileFormatSamples/image/fuzzyBitmap/

Software

 * fbm-1.2.tgz
 * Konvertor
 * XnView