best_solution_in_the_wuuuuuuurld.py 文件源码

def _gkern2(kernlen=21, nsig=3):
    """Returns a 2D Gaussian kernel array."""

    # create nxn zeros
    inp = np.zeros((kernlen, kernlen))
    # set element at the middle to one, a dirac delta
    inp[kernlen // 2, kernlen // 2] = 1
    # gaussian-smooth the dirac, resulting in a gaussian filter mask
    return fi.gaussian_filter(inp, nsig)