Dear authors,

Many thanks for your excellent work and open-source code!

However I came up with some problems when I used my own dataset and tried to generate the MPI images.

1. I had 32 MPI images indeed, but as far as I know: MPI contains 32 RGB layers and 32 alpha layers(I am not sure am I right or not). Are these 32 MPI images generated by corresponding RGB * alpha ?
2. I also notice that when the inference runs, the closest indices of neighbors will be printed out, like [0, 6, 10, 4, 13, 0]. I suppose that the first 0 is the reference image, [0, 6, 10, 4, 13] are its closest neighbors. What does the last zero mean? Does it mean 0 is the target index of image?