OpenCV圖像二值化，Python

OpenCV圖像二值化，Python

原圖：

 

二值化處理（只有黑和白）：

import cv2

if __name__=="__main__":
    image = cv2.imread("pic.jpg")
    gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

    #超過閾值thresh，值爲255，未超過爲0。
    ret1, p1 = cv2.threshold(src=gray, thresh=127, maxval=255, type=cv2.THRESH_BINARY)
    print(ret1)

    ret2, p2 = cv2.threshold(src=gray, thresh=127, maxval=255, type=cv2.THRESH_BINARY_INV)
    print(ret2)

    cv2.imshow('p1', p1)
    cv2.imshow('p2', p2)
    cv2.waitKey(0)
    cv2.destroyAllWindows()

 

結果：