I would like to fill black and white image using floodfill operation but some parts are missing as shown by first row images and some parts are not filled properly (looks some parts become separated from main object) as shown by second row images . To describe, I show some examples below :
below is my code :
im_in = cv2.imread(path to image,cv2.IMREAD_GRAYSCALE)
th, im_th = cv2.threshold(im_in, 220, 255, cv2.THRESH_BINARY_INV)
im_floodfill = im_th.copy()
h, w = im_th.shape[:2]
mask = np.zeros((h+2, w+2), np.uint8)
cv2.floodFill(im_floodfill, mask, (0,0), 255)
please advise
thank you