An Improved Intensity Factor of Correlation-Based Steganography Using M-Sequence and DCT

Kaito Onuma, Sumiko Miyata

Research output: Contribution to journalArticlepeer-review


It is important to securely send information through the Internet; thus, technologies for safely exchanging information are required. One such technology is steganography, which conceals confidential data in multimedia. Although numerous embedding methods have been proposed, increasing embedding capacity, controlling image-quality degradation, and confidentiality are still issues that need to be addressed. There is a method that uses the correlation property of a maximum length sequence (M-sequence) to improve embedding capacity. However, since this method is used in watermarking, which is closely related to steganography, it cannot be directly applied to steganography, which requires a large amount of secret information to embed, because image quality would significantly degrade. We propose two steganography methods that use the correlation property of M-sequence. Particularly, we focused on the improvement of the intensity factor, which is a factor of image-quality degradation. As a result, a significant improvement in image quality was achieved.

Original languageEnglish
Article number12
JournalSN Computer Science
Issue number1
Publication statusPublished - 2024 Jan


  • Discrete cosine transform
  • Least significant bits
  • Spread spectrum image steganography
  • Steganography

ASJC Scopus subject areas

  • General Computer Science
  • Computer Science Applications
  • Computer Networks and Communications
  • Computer Graphics and Computer-Aided Design
  • Computational Theory and Mathematics
  • Artificial Intelligence


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