Non-Causal Prediction for Lossless Coding of Images

Milton Simas Gonçalves Torres, Paulo Roberto Rosa Lopes Nunes

DOI: 10.14209/its.2002.543

Evento: 2002 International Telecommunications Symposium (ITS2002)

Keywords:

Abstract

"In this work it is presented a lossless image coding method using a non-causal and non-linear prediction scheme. As in most lossless methods, each pixel is predicted from values of neighbors, and the differences between actual and predicted values are entropy coded. In the proposed method, prediction is not based only on pixels that have already been coded; pixels not coded yet can also be used. The nonlinear prediction scheme requires the storage of additional information. The amount of this side information however, is not significant. The method has been compared with state of the art lossless image coding schemes and good results were obtained."

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