msvst_starlet.py 文件源码

def transform(self, data, scale, boundary="symm"):
        """
        Perform only one scale wavelet transform for the given data.

        return:
            [ approx, detail ]
        """
        self.decomposition = []
        approx = signal.convolve2d(data, self.filters[scale],
                mode="same", boundary=self.boundary)
        detail = data - approx
        return [approx, detail]