PIX (PIcture in teXt)
PIX ("PIcture in teXt", or "PIcture_teXt") is DOS software by Black Jec Soft (contact: Eugeny Bushmanov), and its native raster graphics format. It displays an image in text mode, presumably by customizing character glyphs.
The software includes a utility named PCX2PIX (possibly also called MPIX), for converting from PCX to PIX format.
PIX v0.22 says that its "second generation" format is incompatible with that used by previous versions of the software.
PIX v0.22 format is a raw bitmap format, 160×140 pixels, organized as 20 strips of 8×140 pixels. The file size is 2800 bytes.