A BITRATE CONTROLLED DATA HIDING SCHEME FOR JPEG2000

J. Chen, T.-S. Chen, C.-N. Lin, and C.-Y. Cheng

Keywords

JPEG2000, bitrate, pseudobitrate, data hiding, layer optimization

Abstract

In this paper, a pseudo-bitrate mechanism to simulate the layer optimization step in rate allocation is proposed. The simulation forces bit readjustments in the compressed bitstreams so that all significant bitstreams will be transferred to the first q − 1 output layers leaving more space in the last qth layer for hiding data. Experimental results showed that pseudo-bitrates can be used to manipulate the amounts of data-to-hide in the compressed bitstreams.

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