Pan-Sharpened Image Optical Encryption

  • Isha Mehra
  • Naveen K. Nishchal
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 166)


Satellites often capture multispectral and panchromatic images. The fusion of these two images results into a high resolution pan-sharpened image. In this paper, we apply image encryption scheme on the pan-sharpened four color band image. We fuse the multispectral data with panchromatic data in order to form the high resolution pan-sharpened image. Then this pan-sharpened image is separated into four spectral bands. These bands are encrypted using amplitude-, and phase-truncation approach with different fractional Fourier transform orders.


Discrete Wavelet Transform Hyper Spectral Imaging Grayscale Image Image Encryption Encrypt Image 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The authors acknowledge the funding from CSIR, Government of India, under Grant No. 03/(1183)/10/EMR-II.


  1. 1.
    Pohl C, Van Genderen JL (1998) Multisensor image fusion in remote sensing; concepts, methods, and applications. Int J Remote Sens 19:823–854CrossRefGoogle Scholar
  2. 2.
  3. 3.
    Javidi B, Do CM, Hong SH, Nomura T (2006) Multi-spectral holographic three-dimensional image fusion using discrete wavelet transform. J Disp Tech 2:411–417CrossRefGoogle Scholar
  4. 4.
    Mehra I, Nishchal NK (2014) Image fusion using wavelet transform and its application to asymmetric cryptosystem and hiding. Opt Express 22:5474–5482CrossRefADSGoogle Scholar
  5. 5.
    Muniraj I, Kim B, Lee BG (2014) Encryption and volumetric 3D object reconstruction using multispectral computational integral imaging. Appl Opt 53:G25–G32CrossRefGoogle Scholar
  6. 6.
    Rajput SK, Nishchal NK (2012) Asymmetric color cryptosystem that uses polarization selective diffractive optical element and structured phase mask. Appl Opt 51:5377–5386CrossRefADSGoogle Scholar
  7. 7.
    Rajput SK, Nishchal NK (2013) Known-plaintext attack on encryption domain independent optical asymmetric cryptosystem. Opt Commun 309:231–235CrossRefADSGoogle Scholar
  8. 8.
    Mehra I, Nishchal NK (2015) Wavelet-based image fusion for securing multiple images through asymmetric keys. Opt Commun 335:153–160CrossRefADSGoogle Scholar

Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Department of PhysicsIndian Institute of Technology PatnaPatnaIndia

Personalised recommendations