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Notes tagged with nir

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DIY NIR Test with Filter Kit #1

by belkinsa 6 months ago | 1 | 328 | 0

Roughly a week ago, I ordered a [DIY Plant Analysis Filter Kit](https://publiclab.myshopify.com/c...

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Hack a camera to make you own DIY Near Infrared device

by Cindy_ExCites 10 months ago | 11 | 399 | 1

This is a workshop to introduce the Public Lab community to members of Citizens without Borders a...

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Zero dark thirsty: Capturing replenishing nighttime rain events with a trail camera

by cfastie about 1 year ago | 7 | 615 | 5

Above: LEAFFESTers observing the deployment of a trail camera (arrow) near a small stream. J...

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Question: doubts about processing NIR images.

by ahcalori about 1 year ago | 8 | 678 | 1

Hi, I have a modified camera to capture NIR images. In the last events, I have been experienc...

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Near-infrared absorption spectroscopy

by shubham over 1 year ago | 2 | 1,051 | 2

I am working on the design of a moderate resolution (2-3nm) visibile-near-infrared (400-1100nm...

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NIR, Rosco fire #19 and my elph 300HS from Christmas

by admaltais about 2 years ago | 1 | 2,064 | 0

Monitoring crops Replacing the original filter in my elph 300HS by the Rosco Fire Filter. G...

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MapKnitter map of Louisiana Nature Center NIR

by stevie about 2 years ago | 1 | 1,455 | 1

<iframe src="https://mapknitter.org/embed/louisiana-nature-center-nir" style="border:none" width=...

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The myterious case of the British Daisy - Fastie colormap in Infragram.org

by Cindy_ExCites over 2 years ago | 4 | 2,200 | 1

I would like so help in figuring out this Infragram.org mystery... here are the exact steps I too...

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Potent Potable Puzzle

by cfastie over 2 years ago | 4 | 2,448 | 4

Unfortunately, there were no correct answers submitted to the [Holiday Whodunit](http://publiclab...

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Holiday Beverage Whodunit

by cfastie almost 3 years ago | 6 | 1,795 | 3

The glasses above each hold one of four liquids which could be found in your kitchen. You...

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Accessible Vegetation Indices.

by gpenzo almost 3 years ago | 4 | 2,813 | 4

I want to get Vegetation Indices, like NDVI, WDVI, NDRE ,EVI I want to make a cape for a beagle...

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NIR and water

by cfastie almost 3 years ago | 1 | 5,023 | 6

Above: Pure NIR photo of white water lily (Nymphaea odorata). . The interaction of infrar...

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Single camera NDVI solution

by theowallis about 3 years ago | 3 | 4,375 | 0

I have a Mobius Actioncam from which I have removed the ir blocking filter. I'm aware that a s...

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Using a RAW image to calibrate a JPEG image

by nedhorning about 3 years ago | 1 | 3,824 | 4

I wanted to test a calibration work flow that involved calibrating a RAW image and then use the r...

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Calibrating raw images - a step toward JPEG calibration?

by nedhorning about 3 years ago | 11 | 6,751 | 2

In this research note I'll go over some calibration tests I've been doing using RAW format image...

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Improved DIY NIR camera calibration

by nedhorning over 3 years ago | 37 | 9,728 | 7

Last fall I started to look into methods to [calibrate near-infrared cameras to measure reflectan...

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NDVI 720nm, 850nm filter two camera setup result.

by gpenzo over 3 years ago | 13 | 7,438 | 1

I made a simple test two day with my canon [two camera setup](http://publiclab.org/notes/gpenzo/...

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Pasture measurement using NIR camera

by drkatnz over 3 years ago | 4 | 5,524 | 1

Ranking paddocks is extremely important in New Zealand, we rely on grass to feed the cows prof...

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Seasonal NDVI with PicturePost & Infragram: Monitoring & Phenology

by wward1400 about 4 years ago | 1 | 3,512 | 3

UNH's PicturePost & the Seacoast Science Center are interested in using Infragram to expand on us...

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NDVI from Infrablue

by cfastie over 4 years ago | 4 | 5,697 | 0

Image above: All possible pairs of NIR and VIS values that produce NDVI values in the standar...

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Infragram Panoramas on Picture Post

by wward1400 over 4 years ago | 1 | 2,577 | 1

Picture Post (map of locations) is a pathway for citizen science ...

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Infrafilters

by cfastie over 4 years ago | 0 | 4,705 | 4

Image above: An infrablue photo (Infragram prototype) and a false color infrared look-alike i...

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Invisible Rays

by cfastie over 4 years ago | 4 | 6,764 | 1

Image above: My backyard in pure infrared light. A Wratten 87 filter allows only wavelengths ...

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Rosco!

by cfastie over 4 years ago | 9 | 10,828 | 4

Image above: Flowers of trailing arbutus (dark) and plants of hair cap moss (light) in a deta...

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CrocusCam

by cfastie over 4 years ago | 3 | 4,046 | 1

Image above: Ned Horning dropped by while the CrocusCam was doing its crocus camera thing. I ...

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Sanm LeafKam

by cfastie over 4 years ago | 3 | 4,229 | 2

Top image: The distance between the lens centers is only 8 mm which reduces parallax errors....

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White balance and NIR photography

by nedhorning almost 5 years ago | 15 | 6,535 | 2

When I first saw the near-infrared (NIR) photos acquired from DIY modifications [<a href="http://...

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Webcam Conversion to (Near-) Infrared

by JoshMc almost 5 years ago | 35 | 25,888 | 5

UPDATE: My previous image server has shut down, so I've uploaded them to a new host, so you can ...

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Canon A2200 NIR conversion

by nedhorning almost 5 years ago | 18 | 10,293 | 0

Canon A2200 NIR conversion This past weekend during LEAFFEST, under the watchful eye of Jeff W...

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Lincoln Peak Vineyard

by cfastie over 5 years ago | 3 | 4,226 | 0

A 10 to 15 mph south wind over the Lincoln Peak Vineyard i...

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