A Secure Image Steganography Technique to Hide Multiple Secret Images

  • S. Hemalatha
  • U. Dinesh Acharya
  • A. Renuka
  • Priya R. Kamath
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 131)


Steganography is the science of “invisible” communication. The purpose of Steganography is to maintain secret communication between two parties. The secret information can be concealed in content such as image, audio, or video. This paper provides a novel image steganography technique to hide multiple secret images and keys in color cover image using Discrete Wavelet Transform (DWT). There is no visual difference between the stego image and the cover image. The extracted secret images are also similar to the original secret images. Very good PSNR (Peak Signal to Noise Ratio) values are obtained for both stego and extracted secret images. The results are compared with the results of other techniques, where single image is hidden and it is found that the proposed technique is simple and gives better PSNR values than others.


Steganography DWT MSE PSNR RGB Luminance  Chrominance  


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • S. Hemalatha
    • 1
  • U. Dinesh Acharya
    • 1
  • A. Renuka
    • 1
  • Priya R. Kamath
    • 1
  1. 1.Manipal Institute of TechnologyManipal UniversityManipalIndia

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