Applying LBP getmapping on Four-patch LBP

Hye. I'm trying to apply getmapping function for LBP code on Four-patch LBP.

My getmapping code and four-patch files are attached

I'm new bee Could you help me about its logic and how to apply mapping in FPLBP

Should I apply it on images before applying FPLBP descriptor or I have to apply it after FPLBP computes its values.