imgproc_funcfile.py 文件源码

def outlining(img):
    #kernel size
    kernel_size=3
    #-------------------------------------------------
    #bilateral filter, sharpen, thresh image
    biblur=cv2.bilateralFilter(img,20,175,175)
    sharp=cv2.addWeighted(img,1.55,biblur,-0.5,0)
    ret1,thresh1 = cv2.threshold(sharp,127,255,cv2.THRESH_OTSU)

    #negative and closed image
    inv=cv2.bitwise_not(thresh1)
    kernel = cv2.getStructuringElement(cv2.MORPH_ELLIPSE, (kernel_size, kernel_size))
    closed = cv2.morphologyEx(inv, cv2.MORPH_CLOSE, kernel)
    return closed