generate_simple_template_phantoms.py 文件源码

def apply_laplacian_filter(array, alpha=30):
    """
    Laplacian is approximated with difference of Gaussian
    :param array:
    :param alpha:
    :return:
    """
    blurred_f = ndimage.gaussian_filter(array, 3)
    filter_blurred_f = ndimage.gaussian_filter(blurred_f, 1)
    return blurred_f + alpha * (blurred_f - filter_blurred_f)