Canny edge detector with gui written in Matlab
- Gaussian filtering with kernel size h of scale sigma
- Calculation of magnitude using Sobel operator in 2 directions
- Non-maximal suppression
- Double threshold
- Edge tracking with hysteresis (only edges with at least one strong pixel are recognized as strong edges). This is implemented using recursive grass-fire algorithm for labeling; matrix wrapper is used to avoid passing matrix as a value. Weak edges are then filtered based on labels.
