How to reconstruct the environment map with needlets coefficients？

[Mrwjm]

Hello，fnzhan: Thank for your release the code for needlets,But the code to generate 'SN_Matrix3.npy' metioned in gt_jen_j3.py was not found, Would you mind providing more details about extracting the needlet coefficients from a HDR panorama and reconstructing the environment map with the needlets coefficients?