HySI analysis

Data reading and loading

Use HySIDataRead.m to read and store the 64 channel HySI data into a 3D matrix.

Then use HySIDataDisplay.m to view the required bands in MixMax and SD stretch

HySI statistical analysis

Optimum Index Factor determination

Optimum Index Factor (OIFmat.m) is determined to obtain those 3 band combination that would have least redundancy, maximum information when they form a FCC

OIF = sum(SD bands)/sum('r' of any 2 of the bands)

'r' - correlation coefficient, SD - Standard Deviation

OIF need to be determined on all the possible 3 band combinations and that with maximum OIF will have form the best FCC

First the combinations of bands 64C3 is found.

nCr = n!/[r! * (n-r)!]

Thus 64C3 = 41664 combinations.