Design and Implementation of Modified Butterworth Filter for Watermarking

In today’s world, Internet is becoming more popular for every human. There are various issues and challenges in data security in internet system like the authenticity of content or matter is crucial factor for solving the problem of copying, modifying, and distributing the intellectual properties in an illegal way. Watermarking can resolve the stealing problem of intellectual properties. This includes design and implementation of watermarking techniques such as basic DCT, DCT with existing Butterworth filter and DCT with modified Butterworth filter. It concluded that PSNR value is highest and MSE value is lowest for DCT Watermarking technique using Modified Butterworth filter.