• P CHAITHANYA
• V SRUJANA

A novel high capacity histogram-based reversible data hiding algorithm is used in this paper .This algorithm introduce low distortion after embedding the secret message. The proposed algorithm is to consider the multiple local histograms, each of which is derived from pixels in a locally adjacent sub-image area, instead of the single histogram for the whole image area. A hierarchical segmentation scheme is developed to partition the input host image into several blocks. In this each block consist of variable size pixels under a maximal capacity criterion for each block patrician. Tree structure is used to organize the partitioned blocks for easy representation. The secret image and partition information are embedded to the host image. With the proposed segmentation method we can easily find suitable non over-lapped partition of the image to considerably increase the embedding capacity. The proposed method provides a high visual quality image comparable to the traditional one.

histogram shifting, Image security reversible data hiding, quad-tree segmentation

"REVERSABLE IMAGE DATA HIDING USING QUAD TREE SEGMENTATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 7, page no.d521-d523, July-2022, Available :http://www.jetir.org/papers/JETIR2207367.pdf

"REVERSABLE IMAGE DATA HIDING USING QUAD TREE SEGMENTATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 7, page no. ppd521-d523, July-2022, Available at : http://www.jetir.org/papers/JETIR2207367.pdf