Any implementation of LineSegmentDetector for python ?

edit

Yes. cv2.createLineSegmentDetector is still there OpenCV 4.1.x. I am using OpenCV 4.1.1. Raspberry pi 4B, Buster Ver 10

@ilas. Can you post ur code?

I tried something very simple, just to give a first look :

img = cv2.imread("messigray.jpg",0)
lsd = cv2.createLineSegmentDetector(0)
lines = lsd.detect(img)[0] #Position 0 of the returned tuple are the detected lines
drawn_img = lsd.drawSegments(img,lines)
cv2.imshow("LSD",drawn_img )
cv2.waitKey(0)

My apologized. You were right. My co-worker found problem.. implementation has been removed due original code license issues in function. It doesn't work on OpenCV 4.1.x. I then switched to OpenCV 3.X and it should work too.

@ilas. I tried your code in OpenCV 3.x and it worked too.

I see. Well, I wouldn't like to change versions cause I need the newest in other parts of the projet. Thank you anyway !

I think you can use instead the Fast line detector. There is a sample.

As Line Segment Detector has been removed due to license conflict, I suggest you all add a thumbs-up to this issue!
"Restore LineSegmentDetector LSD & avoid license conflict": https://github.com/opencv/opencv_cont...