As the costs of digital signal processing and memory hardware are
decreasing each year compared to those of transmission, it is
increasingly economical to apply sophisticated source encoding
techniques to reduce the transmission time for facsimile documents.
With this intent, information lossy encoding schemes have been
investigated in which the encoder is divided into two stages.
Firstly, preprocessing, which removes redundant information from
the original documents, and secondly, actual encoding of the preprocessed
documents. [Continues.
