Weighted fractional Fourier Transform based image Steganography. - Sudhir Keshari; Shri Gopal Modani (ReTIS, 2011)

Color image authentication scheme in Linear Canonical Transform domain. - Sudhir Keshari; Mahboob Alam; Shri Gopal Modani (RAIT, 2012)

Color image encryption scheme based on 4-weighted fractional Fourier transform. - Sudhir Keshari; Shri Gopal Modani (J. Electronic Imaging, 2012)