ICR (NCSA Telnet)

Interactive Color Raster (ICR) is a protocol for displaying graphics on a workstation using the NCSA Telnet application. It can also be used as a file format.

Specifications

 * NCSA Telnet for the Macintosh User’s Guide, Ch. 6: Interactive Color Raster Graphics

Software

 * Netpbm: ppmtoicr (write-only)
 * NCSA Telnet

Links

 * Wikipedia: NCSA Telnet