Mixed Raster Content

Mixed Raster Content (MRC, or T.44) is a graphic format and compression technique. It's most often found wrapped up within a container format such as TIFF-FX as a method of compressing image data. It segments the image into different parts to which different compression methods can be used most efficiently.

Links

 * Wikipedia article
 * ITU Rec T.44
 * JPEG2000-matched MRC compression
 * Leadtools MRC SDK (commercial; free trial)