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Digital Watermarking Using Fuzzy Inference System

Ashish Chicker*, P. M. Menghal **

*-** Faculty of Electronics, Military College of Electronics and Mechanical Engineering, Secunderabad, Telangana, India.

Periodicity:April - June'2021
DOI : https://doi.org/10.26634/jip.8.2.18294

Abstract

In this research work, an algorithm has been developed for robust image processing using Discrete Cosine Transform (DCT) in Fuzzy Inference System (FIS) system. By altering the watermarking coefficient, a value is ascertained which has a better PSNR value leading to the development of a robust algorithm. The same algorithm can be applied universally to various images, whether they are in colour or black and white. The sensitivity of the perception of the eye towards light and colours in an image are narrowed down to three fields namely, luminescence, edge and contrast, which are used as inputs to the Mamdani type FIS subjected to a knowledge base. The watermark created is inserted over the weighted output received from the FIS output. High value of PSNR and low MSE brings out that the algorithm used for inserting the watermark is robust in nature. Using the Cox's algorithm, the watermark is taken out from the watermarked image. The watermarked image has been successfully transmitted over the VHF radio set held with the Indian Army. Due to the implementation of DCT for image processing, the original image has been compressed to a few kilobyte size for it to be successfully transmitted over the radio frequency.

Keywords

Watermarking, Fuzzy Logic, Artificial Neural Network, Fuzzy Inference System (FIS), Peak Signal-to-Noise Ratio (PSNR).

How to Cite this Article?

Chicker, A., and Menghal, P. M. (2021). Digital Watermarking Using Fuzzy Inference System. i-manager's Journal on Image Processing, 8(2), 1-8. https://doi.org/10.26634/jip.8.2.18294

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