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Security of Digital Images using Hybrid Steganography Technique with Stastical and Histogram Analysis

Author(s):

Kirtan Sanghvi , Shree Pandit Nathulalji Vyas Technical Campus; Viral Sanghvi, C U Shah College of Engineering and Technology; Nitin Kanzariya, C U Shah College of Engineering and Technology

Keywords:

Steganography, LSB, DCT, Huffman Encoding, PSNR, Histogram Analysis

Abstract

To protect private information from unauthorized access robust and secured data hiding technique needed. Steganography is a hiding technique in which third party can not get little bit idea about hiding the data(images ,text, audio, video etc..) Good Steganography technique must provide high embedding capacity, security and compressed secret image. In this paper firstly the DCT(Discrete Cosine Transform) of cover image is find. The stego image is constructed by hiding secret image in LSB(Least Significant Bit) of the cover image in random location based on threshold or pseudo random no. Huffman encoding is performed over the secret image before embedding. High security provide since the secret image cannot be extracted without knowledge decoding rules, Huffman table and key matrix. PSNR(Peak Signal To Noise Ratio) value is used to compare the result which existing steganography approaches. We also use Histogram analysis to compare cover image and stego image after embedding secret image.

Other Details

Paper ID: IJSRDV3I30871
Published in: Volume : 3, Issue : 3
Publication Date: 01/06/2015
Page(s): 1744-1747

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