Adaptive robust image watermark approach based on fuzzy comprehensive evaluation and analytic hierarchy process

Abstract

In this paper, we propose a novel image watermark approach using fuzzy comprehensive evaluation (FCE) and analytic hierarchy process (AHP) for determining the watermark embedding strength adaptively in the block-based discrete cosine transform (DCT) domain. By exploiting the brightness, energy and uniform characteristics of the DCT coefficients, we synthesize this information availably. The experimental results show that novel approach has not only the good robustness to commonly image processing such as Gaussian noise, cropping, mean filtering, median filtering, rotation and rescaling but also the very strong resistant ability to translation and rotation attacks.