Absolute Moment Block Truncation Coding (AMBTC) is a compression method with low complexity and simple computation to easily compress a block. Various AMBTC-like methods have been proposed for developing data hiding schemes. All the existing techniques demonstrated steady performance. To further improve performance, in this paper, we present a method to extend the cover image using the neighbor mean interpolation (NMI) method, and improve data hiding performance based on this extended cover image and AMBTC. Experimental results show that our framework is superior in terms of existing BTC-based data hiding function and concealment efficiency.
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