SteqoApp - Hide and Extract Text (WPF, MVVM)

SteqoApp is a simple WPF application that allows users to hide and extract text from BMP image files using steganography. The application follows the MVVM (Model-View-ViewModel) architecture.

✨ Features

• 🖼 Load BMP image from disk
• 🛡 Hide a message inside the image using LSB (Least Significant Bit) manipulation
• 🔍 Extract hidden messages from images
• 📁 Clean and simple UI using WPF and MVVM pattern

🏗 Architecture

• View (MainPage.xaml) - UI layer built using XAML
• ViewModel (MainPageViewModel.cs) - Binds UI and logic
• Commands - SetPathCommand, HideCommand, and ExtractCommand encapsulate the logic for actions

📂 Project Structure

SteqoApp/
│
├── Views/
│   └── MainPage.xaml           # The main window layout
│
├── ViewModel/
│   └── MainPageViewModel.cs   # ViewModel handling data binding and command initialization
│
├── Commands/
│   ├── HideCommand.cs         # Command to hide text in image
│   ├── ExtractCommand.cs      # Command to extract text from image
│   └── SetPathCommand.cs      # Command to select image path

🖼 Usage

1. Choose Image – Click "📁 Choose Image" to select a .bmp file.
2. Enter Message – Type the text message to be hidden.
3. Hide – Click "🛡 Hide" to embed the message in the image.
   • A new image will be saved with "Hidden" inserted before the file extension.
4. Extract – Click "🔍 Extract" to read hidden text from a BMP file.

⚠ Limitations

• Only supports .bmp images
• Message length is limited to the number of pixels in the image

📦 Technologies

• WPF (.NET)
• MVVM pattern
• System.Drawing
• ICommand interface