import cv2

# 腐蚀
def erosion(src):
    #pic = 'image/66.png'
    #src = cv2.imread(pic, cv2.IMREAD_UNCHANGED)
    kernel=cv2.getStructuringElement(cv2.MORPH_CROSS,(5,5))
    erosion=cv2.erode(src,kernel)
    cv2.imwrite("image/result.jpg", erosion)

# 膨胀
def dilation():
    pic = 'image/test.png'
    src = cv2.imread(pic, cv2.IMREAD_UNCHANGED)
    kernel=cv2.getStructuringElement(cv2.MORPH_CROSS,(5,5))
    # 进行膨胀
    dilation=cv2.dilate(src,kernel)
    cv2.imwrite("image/result.jpg",dilation)

# 开运算
def morph_open():
    pic = 'image/test.png'
    src = cv2.imread(pic, cv2.IMREAD_UNCHANGED)
    kernel=cv2.getStructuringElement(cv2.MORPH_CROSS,(5,5))
    open = cv2.morphologyEx(src, cv2.MORPH_OPEN, kernel) 
    cv2.imwrite("image/result.jpg",open)

# 闭运算
def morph_close():
    pic = 'image/test.png'
    src = cv2.imread(pic, cv2.IMREAD_UNCHANGED)
    kernel=cv2.getStructuringElement(cv2.MORPH_CROSS,(10,10),(-1,-1))
    dilation=cv2.dilate(src,kernel)
    close=cv2.erode(dilation,kernel)
    cv2.imwrite("image/result.jpg",close)