Yi Chen1, Hongxia Wang2, *, Xuyun Zhang3
CMC-Computers, Materials & Continua, Vol.63, No.2, pp. 911-922, 2020, DOI:10.32604/cmc.2020.08027
Abstract This paper presents a reversible data hiding (RDH) method, which is designed
by combining histogram modification (HM) with run-level coding in H.264/advanced
video coding (AVC). In this scheme, the run-level is changed for embedding data into
H.264/AVC video sequences. In order to guarantee the reversibility of the proposed
scheme, the last nonzero quantized discrete cosine transform (DCT) coefficients in
embeddable 4×4 blocks are shifted by the technology of histogram modification. The
proposed scheme is realized after quantization and before entropy coding of H.264/AVC
compression standard. Therefore, the embedded information can be correctly extracted at
the decoding side. Peak-signal-noise-to-ratio (PSNR) and… More >
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