Canny Edge Detector - Skimage

• Scikit-image documentation
• Using pip install scikit-image / brew install scikit-image to start.
• If interested can also take a look at opencv-python (OpenCV), however skimage is much lighter and easy to use for relatively simple tasks.

Input leaf pictures downloaded from Moodle page:

Link to BIOS3036 Moodle Page

Parameters:

Mode -> add mode='L' after the input image path to make sure the input image is a single channel image - normally interpreted as greyscale.

Sigma -> sigma plays the role of a scale parameter for the edges: large values of sigma produce coarser scale edges and small values of sigma produce finer scale edges. Larger values of sigma also result in greater noise suppression.

Output: