Digital watermarking using multiresolution wavelet decomposition

TLDR

We present a novel multiresolution wavelet fusion technique for digital watermarking of still images and analyze its behavior across varying system parameters. The method embeds watermarks using multiresolution wavelet fusion, examines parameter effects, and is compared to another transform‑domain watermarking technique. The algorithm is robust to various signal distortions, does not require the original image for extraction, and simulation results show superior performance for robust watermarking of photographic imagery.

Abstract

We present a novel technique for the digital watermarking of still images based on the concept of multiresolution wavelet fusion. The algorithm is robust to a variety of signal distortions. The original unmarked image is not required for watermark extraction. We provide analysis to describe the behaviour of the method for varying system parameter values. We compare our approach with another transform domain watermarking method. Simulation results show the superior performance of the technique and demonstrate its potential for the robust watermarking of photographic imagery.