Abstract: In this project, an improvement in the plain LSB based image steganography is proposed and implemented. The paper proposes the bit inversion technique to improve the stego image quality. Two schemes of the bit inversion techniques are analysed and implemented. In these techniques, Least significant bits of some pixels of host image are inverted if they appear with a particular pattern of some bits of the pixels. In this way, less number of pixels is modified in comparison to plain LSB method. So peak signal to noise ratio of stego image is improved. For correct de-steganography, the bit patterns for which LSBs were inverted needs to be stored within the stego image somewhere. The proposed bit inversion techniques produce very good improvement to LSB steganography. This steganography technique should be combined with other methods for further improvement in image steganography.
Keywords: Image Steganography, LSB inversion, Peak signal to noise ratio, mean square error.
Title: Analysis of Various Methods in Image Steganography
Author: N. Suganya Nachiyar, Mr. Y.R. Packia Das
International Journal of Computer Science and Information Technology Research
ISSN 2348-1196 (print), ISSN 2348-120X (online),
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