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Image Watermarking using Discrete Cosine Tranformation

MATLAB 100.00%
discrete-cosine-transform image-watermarking logo matlab simulink watermarking

image-watermarking's Introduction

Image Watermarking

Image Watermarking using Discrete Cosine Transformation on MATLAB.

Getting Started

How to use

git clone https://github.com/aakashjhawar/Image-Watermarking.git
cd Image-Watermarking

(Execute the main.m file)

Discrete Cosine Transformation

You can read about DCT2 here.

Prerequisites

  • MATLAB
  • Simulink

Procedure

Watermarking-

watermarking

Dewatermarking-

dewatermarking

Working

Original Image & Logo-

Input image of sudoku

Watermarked Image & its comparision-

Threshold image of sudoku

The white part represent that there is difference between Original image and watermarked image.

Dewatermarked Image & its comparision-

Contour of sudoku

The all black part represent that there is no difference between Original image and watermarked image.

Comparision between different images-

Warp of sudoku

image-watermarking's People

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