Pan-Sharpened Image Optical Encryption
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.
KeywordsDiscrete Wavelet Transform Hyper Spectral Imaging Grayscale Image Image Encryption Encrypt Image
The authors acknowledge the funding from CSIR, Government of India, under Grant No. 03/(1183)/10/EMR-II.