期刊名称：International Journal of Network Security & Its Applications
印刷版ISSN：0975-2307
电子版ISSN：0974-9330
出版年度：2013
卷号：5
期号：5
DOI：10.5121/ijnsa.2013.550443
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：In this paper a Z-transform based image authentication technique termed as IAZT has been proposedto authenticate gray scale images. The technique uses energy efficient and low bandwidth based invisible data embedding with a minimal computational complexity. Near about half of the bandwidth is required compared to the traditional Z¨Ctransform while transmitting the multimedia contents such as images with authenticating message through network.This authenticating technique may be used for copyright protection or ownership verification. Experimental results are computed and compared with the existing authentication techniques like Li's method [11], SCDFT [13], Region-Based method [14] and many more based on Mean Square Error (MSE), Peak Signal to Noise Ratio (PSNR), Image Fidelity (IF), Universal Quality Image (UQI) and Structural Similarity Index Measurement (SSIM) which shows better performance in IAZT
关键词：Transform; Frequency Domain; Watermarking; Mean Square Error (MSE); Peak Signal to Noise Ratio ;(PSNR); Image Fidelity (IF); Universal Quality Image (UQI); Structural Similarity Index Measurement ;(SSIM).
