c# - Calculating NDVI index from Tiff images? -

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i have problem ndvi calculating. use libtiff.net , i'd calculate ndvi 2 tiff images.

i read many documents (for example: http://en.wikipedia.org/wiki/normalized_difference_vegetation_index ).

i need spectral reflectance measurement property ndvi. unfortunately can't these property tiff tag's.. spectral reflectance measurement tag?

how can calculate ndvi bitmiracle libtiff?


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