Title :
Authentication of images through non convoluted DCT (AINCDCT)
Author :
Sengupta, Madhumita ; Mandal, J.K.
Author_Institution :
Dept. of Comput. Sci. & Eng., Univ. of Kalyani, Nadia, India
Abstract :
In this paper a DCT based gray scale image authentication technique in frequency domain, termed as AINCDCT has been proposed. The cover image transformed into the spectral domain through 2 × 2 mask in row major order using nonconventional DCT, resulting corresponding frequency components. Higher frequency components having less energy, replaced by secret bits using secret key and a hash function. Reverse procedure is followed during decryption. Experimental results obtained compared with the existing authentication techniques Luo et al and WTSIC in terms of Mean Square Error (MSE), Peak Signal to Noise Ratio (PSNR) and Image Fidelity (IF) which show better performances in AINCDCT.
Keywords :
discrete cosine transforms; image coding; mean square error methods; steganography; AINCDCT; IF; MSE; PSNR; frequency components; frequency domain; gray scale image authentication technique; hash function; image fidelity; image transform; mean square error; non convoluted DCT; peak signal to noise ratio; secret key; spectral domain; Authentication; Discrete cosine transforms; Equations; Frequency domain analysis; Gold; PSNR; Payloads; Authentication; Discrete Cosine Transformation (DCT); Image Fidelity (IF); Mean Square Error (MSE); Peak Signal to Noise Ratio (PSNR); stego-image;
Conference_Titel :
Communication and Industrial Application (ICCIA), 2011 International Conference on
Conference_Location :
Kolkata, West Bengal
Print_ISBN :
978-1-4577-1915-8
DOI :
10.1109/ICCIndA.2011.6146672
