Edge Detectr
A free online tool for applying edge detection algorithms to your images. No signup required, instantly transform your photos with advanced computer vision techniques.
Available Algorithms
- OpenCV Sobel - Standard implementation of the Sobel operator
- Alternative Sobel - Custom implementation with different parameters
- OpenMP Sobel - Parallel processing for better performance
- Prewitt - Classic edge detection for both horizontal and vertical edges
- Roberts Cross - Diagonal edge detection with simple 2×2 matrices
How It Works
- Select an edge detection algorithm from the dropdown
- Upload your image (supports JPEG, PNG, GIF, and WebP)
- Wait a few seconds for processing
- Download your edge-detected result
Max file size: 100MB. Limited to one upload every 30 seconds.
Drag and drop an image here, or click the button below
Please select an operator before uploading an image
Max size 100 MB. Limited to one upload every 30 seconds. By proceeding, you agree to our .
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About Edge Detection
Edge detection is a fundamental technique in image processing and computer vision that identifies boundaries of objects within images. It works by detecting discontinuities in brightness, using mathematical methods to highlight regions where the image brightness changes sharply.
Applications include medical imaging, object recognition, and image enhancement. Edge Detectr provides access to several popular algorithms, each with different strengths for various types of images.