NEOchrome

Overview
NEOchrome format is a raster image file format associated with the NEOchrome graphics editor for Atari ST.

Files have a 128-byte header, followed by 32000 bytes of uncompressed image data.

It supports three image formats:
 * 320×200, 16-color
 * 640×200, 4-color
 * 640×400, 2-color

Software

 * Netpbm (320×200 only?)
 * XnView

Resources

 * MultimediaWiki article
 * Atari ST Graphics Formats