Training on pre-defined kernels

[petrutiuvlad]

Hello! I have a kernel-pool which has 1k kernels of size 33x33 for x4 upscaling. How should the code be modified in order to make sure that we obtain proper estimations? Cause right now in order to obtain the x4 kernel you use FKP_x2 to obtain an estimation and then you do a kernel shift to obtain the x4 one. But this should not work if we would have to bring our own kernels of a different size.