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this separation makes it possible to post-process the red and blue channels for NDVI by performing the calculation: NDVI = (blue – red) / (blue + red)
Healthy vegetation will absorb (not reflect) blue light and strongly reflect NIR
The SP650 is useful to achieve natural color rendition with superior response in the blue channel
license plate recognition and industrial inspection applications when there is overwhelming ambient light conditions and is suitable for laser diode and LED illumination
Green Interference Bandpass Filter, 535-558nm - MidOpt Bi550 Neutral Density this separation makes it possibleThe MidOpt Bi550 Green Interference Bandpass Filter is designed to block unwanted ambient light when imaging subjects illuminated with 550nm green LEDs. They are also used to isolate the green vegetation signal used to arrive at EVI (Enhanced Vegetation Index) and other similar plant health numerical indices. MidOpt Bandpass Filters have a broad, Gaussian passband to mimic and accommodate the entire output of the most common LED wavelengths, are
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