Find Contours
This layer (find_contours
) extracts contours from bitmaps and stores results as polygons.
{ "src": [ "$sample1" ], "dst": "$sample2", "action": "find_contours", "settings": { "classes_mapping": { "my-mask": "found-contours" } } }
For each figure of class "my-mask" this will find contours (with OpenCV findContours
), and the found contours will be stored as objects of shape "polygon" (class "found-contours").
Holes in source masks produce holes in polygons (with two-level hierarchy of borders).
Settings¶
classes_mapping
— dict where keys are existing classes of shapebitmap
, and values are new names of classes.
Example¶
Example of usage may be found here.