We've been talking about NDVI imaging and i finally gave it a try, using Photoshop.
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Public Lab Research note
Public Lab
Research note
NDVI test in Lima Peru
by warren
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December 24, 2010 14:39
24 Dec 14:39
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| #35
| #35
We've been talking about NDVI imaging and i finally gave it a try, using Photoshop.
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4 Comments
What nanometer filter did you use for the middle image?
Also, here is a great youtube vid on how to make NDVI images in GRASS GIS: https://www.youtube.com/watch?v=IFTh3UuMSHw&feature=related
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Sorry i answered you in the mailing list. I should install something to send an email alert if someone comments on your stuff, i guess.
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A long time later -- here's an attempt to use Image Sequencer to do this:
https://publiclab.github.io/image-sequencer/examples/#steps=import-image,blend,ndvi,colormap
This isn't quite working yet, but here are the separated images:
Visible:
Infrared:
And the original NDVI from the above image:
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OK - now able to do this by adding infrared first, then visible, then blending, then ndvi (red filter):
It's a little dimmer because I think we mapped
-1..1
NDVI values to0..100%
brightness values.Then colormapping:
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