Following are examples of unprocessed photographs comparing a stock Canon ELPH300 camera to our NDVI version.  

Keep in mind that for the ELPH300NDVI camera, the color channels are mapped where

	Red = Near Infared
	Green = Visible Green Light
	Blue = Visible Blue Light

Processed images were created with ImageJ and our custom aNDVI7_MKII macro which maps NDVI values to various colors where

	Green is highest NDVI value
	Yellow is under green
	Red is under yelllow
	Purple is under red
	Black is under purple

NDVI calculation is a modified version of the traditional NDVI calculation which we call Enhanced NDVI or ENDVI.  For this example, we used:

ENDVI = (Red + Green) - (2 * Blue )) / ((Red + Green) + (2*Blue))

The reason for this is that both the Red (Infrared light) and Green (Visible Green) should reflect light for a healthy plant.  Blue is normally absorbed by a healthy plant.  By summing the Red (Infrared) and Green channels together, we get a better signal than when just using the infrared signal alone.

Stock Canon ELPH300 Camera	MaxMax XNiteCanonELPH300NDVI	Image Procesed