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354 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 16, NO. 3, MARCH 2006 Reversible Data Hiding
 

Summary: 354 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 16, NO. 3, MARCH 2006
Reversible Data Hiding
Zhicheng Ni, Yun-Qing Shi, Nirwan Ansari, and Wei Su
Abstract--A novel reversible data hiding algorithm, which can
recover the original image without any distortion from the marked
image after the hidden data have been extracted, is presented
in this paper. This algorithm utilizes the zero or the minimum
points of the histogram of an image and slightly modifies the pixel
grayscale values to embed data into the image. It can embed more
data than many of the existing reversible data hiding algorithms.
It is proved analytically and shown experimentally that the peak
signal-to-noise ratio (PSNR) of the marked image generated by
this method versus the original image is guaranteed to be above
48 dB. This lower bound of PSNR is much higher than that of all
reversible data hiding techniques reported in the literature. The
computational complexity of our proposed technique is low and
the execution time is short. The algorithm has been successfully
applied to a wide range of images, including commonly used
images, medical images, texture images, aerial images and all of
the 1096 images in CorelDraw database. Experimental results

  

Source: Ansari, Nirwan - Department of Electrical and Computer Engineering, New Jersey Institute of Technology

 

Collections: Engineering