Abstract
AbstractThis paper proposes a novel reversible data hidng scheme in images compressed by absolute moment block truncation coding (AMBTC). In this scheme, the secret data is embedded into the quantization levels of each AMBTC-compressed image block based on a reference matrix. Original quantization levels are transformed into another watermarking message which will combine with bitmap in each image block. The reconstructed image quality is exactly the same as the original AMBTC-compressed version due to the reversibility. Extensive experimental results demonstrate the effectiveness of the proposed scheme and good image quality of the embedded image.Keywordsreversible data hidingabsolute moment block truncation codingimage compressionreference matrix
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