Python Opencv Structured Forests Edge Detection TypeError

edit

you need a model : see example in c++ and in python

You will need model in :

/****************************

The structered edge demo requires you to provide a model. This model can be found at the opencv_extra repository on Github on the following link: https://github.com/opencv/opencv_extr...

*****************************/

Try this:

import cv2
img = cv2.imread('2009_005193.jpg')
edgedetector = cv2.ximgproc.createStructuredEdgeDetection('./model.yml')
src = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
edges = edgedetector.detectEdges(np.float32(src) / 255.0)
cv2.imshow("edges", edges)

cv2.ximgproc_StructuredEdgeDetection is not a function, but a class, you first have to create an instance of it:

ed = cv2.ximgproc.createStructuredEdgeDetection(model)

which takes the path to the pretrained edge detection model file as argument. (you probably need to download it first)

then you can use it like:

dst = ed.computeEdges(src)

you can also look at the builtin help cmd:

>>> help(cv2.ximgproc_StructuredEdgeDetection)