Before-After images compare // Comparing multiple images simultaneously.
📸 Before-After images compare
A professional, lightweight, and fast image comparison tool for Windows.
Before-After images compare is designed to streamline the workflow of comparing multiple images simultaneously. With perfect synchronization of zoom and pan operations, intelligent auto-alignment, and heatmap analysis, it's the ideal tool for photographers, designers, and anyone who needs precise visual comparisons.
✨ Features
Multi-Image Comparison: Effortlessly manage and compare smooth image slices with movable sliders.
Total Synchronization: Zoom (Ctrl + Scroll) and pan (Right-Click) actions are applied simultaneously across all images.
Blink Mode: Hold the Spacebar to instantly toggle between the reference image and the current view.
Intelligent Auto-Alignment: Automatically aligns slightly shifted images using an advanced 2D affine algorithm.
Heatmap Analysis: Generate cumulative thermal maps to visualize differences across your image sets.
Professional Exporting: Export clean, 1:1 ratio images in JPEG, PNG, or animated GIF formats, complete with customizable labels and watermarks.
Quick Right-Click Functions: Execute fast tasks directly from Windows Explorer without opening the UI (e.g., Generate Quick Export for images or Batch Export for folders).
Multilingual Support: Natively supports both English and French, automatically detecting your system language.
🚀 Installation
1. Prerequisites
Ensure you have Python 3 installed. Then, install the required dependencies using pip:
pip install -r requirements.txt
2. Windows Context Menu Integration (Automated)
Integrating Comparateur Pro into your Windows right-click menu is now fully automated and portable!
Double-click the install_raccourcis.bat file included in the repository.
The script will automatically detect the folder's location.
Choose your preferred menu language (1 for French, 2 for English) directly in the command prompt.
That's it! You can now move the folder anywhere; just re-run the .bat file to update the paths in your registry instantly.
🛠️ Usage
Drag & Drop: Simply drop images or folders directly into the interface to create a new comparison pack.
Windows Explorer Context Menu:
On Images: Select multiple images, right-click, and choose to either open them in the tool or generate an instant "Quick Export" in the background.
On Folders: Right-click a folder to compare all its images, or use the "Batch Export" function to process the entire folder seamlessly.
Shortcuts:
Spacebar (Hold): Blink Mode (shows reference image).
Ctrl + Scroll: Zoom in/out.
Right-Click (Hold & Drag): Pan the view.
Delete: Remove the selected image or pack.
Ctrl + C: Copy the current comparison view to the clipboard.
Ctrl + S: Open the Export dialog.
