Indian Journal of Science and Technology

The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).

If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.

Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.

Fullscreen Fullscreen Off


Background/Objectives: Steganographic techniques embed a secret to host cover to conceal its content. Among several methods for data embedding, Exploiting Modification Direction (EMD), which is simple and efficient, has attracted a lot of attention lately. Methods/Statistical Analysis: However, the recent schemes based on this method have high stego-image distortion. In this paper, we employ combinatorial optimization algorithm, also known as Hungarian algorithm to reorganize the secret sequences. Findings: As a result, we can remarkably reduce the distortion and achieve the best quality of stego-image. Moreover, experimental results show that our scheme is stable under different scenarios regardless of common case, worst case, or best case. Application/Improvements: Due to the simplicity and efficiency, the method is suitable for real-time application. This method is improved further to enhance embedding capacity while remaining the image quality

Keywords

Data Hiding, EMD, Hungarian Algorithm, Information Security, Optimization, Steganography.
User