Image Change Detection Software
Image comparison and change detection software built with Python and OpenCV. Pixel-level analysis marks every difference in the blink of an eye.
Desktop software that compares two images pixel by pixel and marks every change in the blink of an eye.
The challenge
Finding small differences between two near-identical images by eye is slow, tiring and easy to get wrong, especially when the views are slightly offset or contain noise.
Our solution
We built a desktop application for image comparison and change detection. It finds the two views to compare, aligns them, runs a pixel-level difference analysis, filters out noise, and marks every change with a numbered box on both views in the blink of an eye. It also reports the screen coordinates of each change.
What it delivers
- Every difference found and marked automatically
- No more comparing images by eye
- Results as soon as you press the capture key
Key features
- Pixel-level difference analysis with noise filtering
- Coarse-to-fine alignment that corrects small offsets between the views
- Automatic region detection, with drag-to-adjust controls
- Adjustable sensitivity, minimum change size and edge handling
- Numbered markers and coordinates for every change
- One-key capture, packaged as a standalone executable
Where it fits
- Visual quality assurance and testing
- Design, print and document review
- Image and screenshot verification
- Monitoring and inspection workflows
Technologies
Python, OpenCV, NumPy, PyQt5, PyInstaller
This site works best with JavaScript enabled. Reach us at codifylabs.pk@gmail.com or on WhatsApp.