Function is_cv4

imutils/convenience.py:199–208

(or_better=False)

    return major == 3

def is_cv4(or_better=False):
    # grab the OpenCV major version number
    major = get_opencv_major_version()

    # check to see if we are using *at least* OpenCV 4
    if or_better:
        return major >= 4

    # otherwise we want to check for *strictly* OpenCV 4
    return major == 4

def get_opencv_major_version(lib=None):
    # if the supplied library is None, import OpenCV