“Menutup lubang kecil pada gambar biner dengan opencv” Kode Jawaban

Menutup lubang kecil pada gambar biner dengan opencv

'''Closing small holes in Opencv can be done using morphological 
operation method, cv2.morphologyEx() with cv2.MORPH_CLOSE'''
import cv2 
img = cv2.imread("myimage.png")
'''Assuming image "myimage.png" has small holes in it, such as the
example in this Link: https://freesvg.org/june-25-black-white-circles;
the black and whites circles are the foreground and the rest is the 
background.'''
kernelSize = (7,7) # as the kernetsize increase more holes are closed.
kernel = cv2.getStructuringElement(cv2.MORPH_RECT, kernelSize)
'''kernelSize is the filter size (must be odd) and cv2.MORPH_RECT
specifies that the shape of the kernel should be a rectangle (other shapes
are available). The getStructuringElement() generate the kernel.'''
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY) # convert to gray scale
BinryImg = cv2.threshold(gray,20,255,cv2.THRESH_BINARY)[1]# convert to-
#binary image.
closing = cv2.morphologyEx(converToBinaryImg, cv2.MORPH_CLOSE, kernel)
cv2.imshow("outputmyimg",closing)