Here is a sample README file for an OpenCV steganography tool built in C++:

OpenCV Steganography Tool

A C++ tool for hiding secret messages within images using steganography, built using OpenCV.

Table of Contents

• Features
• Requirements
• Installation
• Example Use Cases

Features

• Hide secret messages within images using least significant bit (LSB) substitution
• Support for various image formats, including PNG, JPEG, and BMP Command-line interface for easy usage
• Optional encryption of secret messages using XOR cipher

Requirements

• OpenCV 3.x or 4.x
• C++11 or later compiler
• PNG, JPEG, or BMP image files
• cmake tool for building files

Installation

• Clone the repository: git clone https://github.com/your-username/opencv-steganography-tool.git
• Install OpenCV: Follow the installation instructions for your operating system
• Paste this cmake file into your directory

  cmake_minimum_required(VERSION 3.28.3)
  project(opencvv)
  find_package( OpenCV REQUIRED )
  set(CMAKE_CXX_STANDARD 20)
  include_directories(${OpenCV_INCLUDE_DIRS})
  add_executable(opencvv main.cpp Steganography.cpp ImageInfo.cpp )
  target_link_libraries( opencvv ${OpenCV_LIBS} )
  

Example

stegoDemo.mp4