I do some research about NDVI (image processing) use camera mobius with red filter. for image processing, i'm using visual studio c#. i'm confused with my image proccesing, image in c# have 3 layers.
I'm using formula ndvi= Nir-Vis/Nir+Vis
Vis= Blue channel Nir= red channel
after i'm process that formula, i'm confused to put the result in which layer ? And what will i do with the other layer ? what i must be filled in that layer, is that data from our image before process the formula or i must fill it with the other value ?
please someone help me
I'm using formula ndvi= Nir-Vis/Nir+VisThe formula for NDVI is NDVI=(Nir-Vis)/(Nir+Vis)
Vis= Blue channel Nir= red channelWith a red filter, the blue channel will be mostly NIR and the red channel will be mostly red (with some NIR).
The computed NDVI values will be between -1 and +1. I don't know what the options are in Visual Studio for displaying those values. To make an 8 bit grayscale image, the values could be scaled between 0 and 255. A grayscale image can have just one channel. To make a color image, you have to know how Visual Studio makes a color image when each pixel has only one value (NDVI). Maybe a look up table?
Chris
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ser chris, how to visualiseason NDVI color in RGB format , because we won to visualiseason NDVI in RGB color
It's very easy to convert a photo from a red-filtered Mobius (or other) camera to color NDVI using the Photo Monitoring plugin for Fiji: https://publiclab.org/notes/nedhorning/01-13-2016/packaged-photo-monitoring-plugins-available-on-the-github-repositoy
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