Dyadic-shift-based image processing

Roman Castaneda; Javier Gonzalez; Kenneth Cabrera

doi:10.1117/12.577157

26 August 2004 Dyadic-shift-based image processing

Roman Castaneda, Javier Gonzalez, Kenneth Cabrera

Proceedings Volume 5566, Optical Security and Safety; (2004) https://doi.org/10.1117/12.577157
Event: Optical Security and Safety, 2003, Warsaw, Poland

Abstract

The dyadic shift-based image processing uses the address permutation of the individual pixels or the permutation of their gray levels or both by means of the XOR operation. It is properly described within the framework of the two-dimensional Walsh functions and Walsh transforms. The dyadic shift procedures allow the transformation of the original image and its posterior recovery without information loss by simply performing further permutations. In addition, comparison of particular features of different images can be achieved by applying dyadic correlations, which in turn can also take advantage of the Walsh transforms. Therefore, the dyadic shift-based image processing has potential applications on image encryption, image enhancement and filtering and pattern recognition among others.

Citation Download Citation

Roman Castaneda, Javier Gonzalez, and Kenneth Cabrera "Dyadic-shift-based image processing", Proc. SPIE 5566, Optical Security and Safety, (26 August 2004); https://doi.org/10.1117/12.577157

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