Reversible Data Hiding in Encrypted Images Based on Bit-plane Rearrangement and Huffman Coding

What is it about?

The information is hidden in the encrypted image, and the hidden information can be extracted without decrypting the original image. The original image can also be restored losslessly.In this paper, combined with Huffman coding, a high information embedding capacity is obtained.

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Why is it important?

In this paper, Huffman coding is applied to the field of reversible information hiding for the first time, and better embedding capacity is obtained compared with the state-of-the-art methods.