contour_following
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C = CONTOUR_FOLLOWING(BW) takes BW as an input. BW is a binary array containing the image of an object ('1': foreground, '0': background). It returns a circular list (N x 2, C(1,:)=C(end,:)) of the (row,column)-coordinates of the object's contour, in the order of appearance (This function was inspired from the freeman contour coding algorithm).
Note:
- if the object is less than 3 pixels, CONTOUR_FOLLOWING sends back [0 0].
- the algorithm is quite robust: the object can have holes, and can also be only one pixel thick in some parts (in this case, some coordinates pair will appear two times: they are counted "way and back").
This function was originally developed in order obtain an initialization for a snake algorithm.
The .zip files contains some example images and a test script.
Cite As
Francois Mourougaya (2024). contour_following (https://www.mathworks.com/matlabcentral/fileexchange/14947-contour_following), MATLAB Central File Exchange. Retrieved .
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- Image Processing and Computer Vision > Image Processing Toolbox > Image Segmentation and Analysis > Image Segmentation >
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Version | Published | Release Notes | |
---|---|---|---|
1.0.0.0 | Corrected a minor bug. |