Data reductive image coding by bit-plane modifications

摘要

A bit-plane data-reduction scheme based on some characteristics ofhuman image perception is described. This scheme is on informationlossy/modifying type. General properties of bit-plane-decomposed imagesare reviewed. A method that modifies less important portions on thebit-planes into flat areas, to achieve more uniform images, isintroduced. A hierarchical algorithm for the purpose is presented as theactual strategy. The important features of this algorithm are that itcan use the coded data in the depth first expression and that the datamodification is not likely to affect edges and isolated small areas,which are both very important for image perception