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AC-coefficient histogram-based retrieval for encrypted JPEG images.

Hang ChengXinpeng ZhangJiang Yu
Published in: Multim. Tools Appl. (2016)
Keyphrases
  • jpeg images
  • compression algorithm
  • jpeg compression
  • discrete cosine transform
  • dct coefficients
  • image retrieval
  • data hiding
  • image compression
  • computer simulation
  • spatial domain
  • compressed images
  • lossy compression