Canny-Edge-Detector

Implementation of Canny Edge Detector in C++

Algorithm

Original image

Finding the intensity gradient of the image and thresholding without denoising by sobel

Finding the intensity gradient and thresholding with denoising by sobel

Canny detector

1. Finding the intensity gradient and denoising by sobel
2. Non-maximum suppression
3. Double threshold
4. Edge tracking by hysteresis (only pixels with at least one strong pixel in the neighbourhood are marked as strong pixels).