Character image encoding/decoding system.

摘要

A character image encod/decoding apparatus is provided with an encoder for encoding character data to a sub-picture with a bit-mapped shape of monochromic character data, separately from an encoding of a main picture, a detecdtor for detecting bit changing positions in a two-dimensional manner from the bit-mapped shape of monochromic character data, an extractor for extracting a contour of the character data and a developper for developing the character data, the contour and a background of the character data in three domains, respectively. <IMAGE>