All data now loaded by script
Removed model limits as I believe the crossover point of the 2 models is a more effective way of modelling the data
Calculates continuous model by using brute force approach to vertical shifting.

Errors too high in 2nd region
Fixed issue with shape being mis-shifted

Errors now acceptable
Refactored code to run as functions

Lookup table currently not calculating correct crossover points
Correctly calculates crossover and vertical shift now
Luminance map can now be calculated with lookup table, models and pixel data. Pixel errors also calculated
Models calculated in parallel with the models saved to .mat files on disk
Gets a lookup table using full data set
Calculates the errors between lookup table model and actual data - uses full pixel set