A Lossless Recovery of Data Embedded in Color Image Based On Block Division Method
Journal Title: International Journal on Computer Science and Engineering - Year 2011, Vol 3, Issue 3
Abstract
Today, digital media are getting more and more popular. Not only multilevel images, video and audio are in digital form, but gray scale images are also digitized in many applications. Data transmitted over the internet can be hacked, so the data encryption becomes important. One of the encryption techniques is reversible data hiding. The major characteristic of this method is that it allows reconstruction of the original image from the stego image after extraction of data. Ni (NSAS) proposed the reversible data hiding based on histogram shifting. However the method had no provision of sending the peak point information required to extract the secret data. Later, Hwang (HKC) proposed a scheme based on histogram shifting to overcome this shortcoming. But this method decreases the data hiding capacity. In order to enhance data hiding capacity block division method is used. In this paper an algorithm for embedding data into color image is proposed. According to the proposed method , the reversible data hiding scheme for color images not only improves the original data hiding capacity but also attains the goal of lossless data recovery.
Authors and Affiliations
Samriti Sharma , Rekha Udabale , Snehal Shendkar , Prof. Sukhada Bhingarkar
Keywords
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