A modified OWA operator and its use in lossless DPCM image compression. (English) Zbl 1232.68139

Mitchell, H. B.; Estrakh, D. D.

Int. J. Uncertain. Fuzziness Knowl.-Based Syst. 5, No. 4, 429-436 (1997).

Summary: The ordered weighted averaging (OWA) operator of Yager was introduced to provide a method for aggregating several inputs which lies between the Max and Min operators. The fundamental aspect of the OWA operator is a reordering step in which the input arguments are re-arranged according to their actual relative value. In this paper we describe a modified OWA operator in which the input arguments are not re-arranged according to their actual relative values but rather according to their estimated relative values. We describe an unusual application of this operator to lossless image compression.

MSC:

68T37	Reasoning under uncertainty in the context of artificial intelligence
68U10	Computing methodologies for image processing
94A08	Image processing (compression, reconstruction, etc.) in information and communication theory

Keywords:

aggregation operators; ordered weighted averaging; OWA; DPCM; lossless image compression; JPEG