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Notes tagged with super-red

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Plant Health NDVI -White Balance

by Claytonb over 1 year ago | 3 | 1,294 | 2

I have been experimenting with numerous different types of material to set a custom white balance...

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Plant Health NDVI Consumer camera vs Professional multispectral camera

by Claytonb over 1 year ago | 9 | 3,053 | 9

I wanted to share some of my results in comparing a modified consumer camera with a scientific gr...

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Plant health NDVI Red vs Blue filter

by Claytonb almost 2 years ago | 9 | 3,310 | 5

While testing Ned Horning's calibration plugin([Ned's plugin](https://publiclab.org/notes/nedhorn...

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Orange is the new red

by cfastie almost 3 years ago | 11 | 5,206 | 6

A couple of weeks ago Joe Sommer from Penn State [asked about using an orange filter instead of a...

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Initial results: PL Mobius Infragram Point and Shoot on Parrot AR.Drone 2.0

by patcoyle almost 3 years ago | 6 | 4,537 | 0

Explore mapping with lightweight PL Mobius Infragram and low-lift, low altitude UAVs (like Parro...

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NDVI with red filters

by fliperbaker about 3 years ago | 0 | 3,324 | 2

Test the results on NDVI photos using red filters Here a basic analysis about red filters perf...

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LEAFFEST aerials

by cfastie about 3 years ago | 1 | 3,046 | 3

*Image above: Teddy and the Iris with the radio remote transmitter (bottom center), and his lapto...

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The LEAFFEST Line

by cfastie about 3 years ago | 2 | 4,302 | 0

LEAFFEST is only a week away, an...

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New NDVI colormap

by cfastie about 3 years ago | 26 | 13,281 | 8

NDVI is an index (a unit-free number) related to how much photosynthetic activity is occurring. A...

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Halo: Red vs. Blue

by cfastie over 3 years ago | 1 | 3,209 | 3

Above: A bucket blocks the Sun at the center of a 22° ice crystal halo. . There was a 22°...

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Super Redstone

by cfastie over 3 years ago | 3 | 3,383 | 3

I took a new super-red Infragram camera for a test flight yesterday over a field that was scarred...

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Mobius NDVI

by cfastie over 3 years ago | 29 | 8,211 | 3

*Above: It should be pretty easy for a DIY NDVI image to differentiate between things in this sce...

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Cryptogams

by cfastie almost 4 years ago | 0 | 5,041 | 0

Image above: Wratten 25A infrared image of moss branches in front of a mat of liverwort. . ...

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Moody Meadows

by cfastie almost 4 years ago | 0 | 4,627 | 1

I photographed the scene above of the Moody Meadows farm in New Haven, VT with Canon A2200 Powers...

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White balance for all

by cfastie almost 4 years ago | 6 | 4,965 | 3

I have been doing a custom white balance on my CCD Powershot Infragram cameras by [filling the fr...

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Pine Hill

by cfastie about 4 years ago | 4 | 3,435 | 1

*Image above: A Gigapan Epic 100 imager with Powershot A2200 modified with a Wratten 25A red filt...

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Red Filter Rising

by cfastie about 4 years ago | 15 | 7,072 | 3

*Image above: False color infrared version of a landscape scene taken with a modified Canon A2200...

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Why a red filter should work well for NDVI

by nedhorning about 4 years ago | 12 | 8,662 | 5

In my recent research note comparing NDVI images created using blue and red filters (http://publi...

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Red vs. blue filters for NDVI

by nedhorning about 4 years ago | 32 | 14,563 | 5

While working on [calibration techniques](http://publiclab.org/notes/nedhorning/10-21-2013/calibr...

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White balancing a Canon camera for Infragram photography

by warren over 4 years ago | 12 | 5,778 | 1

Chris Fastie has already [covered this in great detail](/notes/cfastie/06-17-...

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