smooth edges of a segmented mask

Question

is it possible to smooth edges using openCV(python). mask.

Take a look at this http://stackoverflow.com/questions/7416025/how-do-i-smooth-the-curvescontours-in-opencv Is what you are looking for? — Cezar Sas, Dec 24 '16 at 13:24
I also found this: http://stackoverflow.com/questions/37068448/opencv-how-to-smooth-contour-reducing-noise — Cezar Sas, Dec 24 '16 at 13:26
Thanks Cezar. I wanted to understand the steps that are being used in the link. The answer you provided also can help but it is giving a white image right now. — ISha, Dec 25 '16 at 09:52

score 5 · Answer 1 · answered Dec 27 '16 at 11:08

Try this code:

import cv2

print(cv2.__version__)

img = cv2.imread('iep43.jpg', 0)
kernel = cv2.getStructuringElement(cv2.MORPH_ELLIPSE, (11, 11))
(thresh, binRed) = cv2.threshold(img, 128, 255, cv2.THRESH_BINARY)
opening = cv2.morphologyEx(img, cv2.MORPH_OPEN, kernel, iterations=3)
cv2.imwrite("cleaned.jpg", opening)

It uses the morphological operation of opening

smooth edges of a segmented mask

1 Answers1