active_contour.py 文件源码

def bwdist(a):
    """
    Intermediary function. 'a' has only True/False vals,
    so we convert them into 0/1 values - in reverse.
    True is 0, False is 1, distance_transform_edt wants it that way.
    """
    return nd.distance_transform_edt(a == 0)


# Displays the image with curve superimposed