• Input an original probe image

• output SH coefficients & the reconstructed image using these SH coefficients.

You can also change SH_ORDER in SH.h

$ ./SHTools.exe [options] <input>
<input>              .hdr probe image
Options: --help      Print help message
         -h          Hanning  filter
         -l          Lanczos  filter
         -g          Gaussian filter