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calibration camera barnstar:basic data diy curve citizen barnstar:excessive-enthusiasm activity:raspberry-pi-infragram activity:pi-camera

calibration

30 people discussing

¿Cómo hago una serie de diluciones para calibrar un Coqui para medir sólidos disueltos totales (STD)? by @alejobonifacio
Be careful calibrating Coqui conductivity sensor by @alejobonifacio
How long do you need to co-locate an air quality tool to get what you need to calibrate or "ground truth" another tool? by @stevie
 1 note |  0 questions |  3 comments by @khufkens
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camera

7 people discussing

PicaPiKAP: cámara de mapeo libre y abierta by @imvec
White balance settings - pi NoIR camera with blue filter NDVI by @jdetka
Always blank, black spectrum by @Detector
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citizen

0 people discussing

What actions can residents take to use environmental data to make an impact in their community? by @jessicac
Road Salt and Salmon by @acjames76
Reporting Forms for Louisiana (and other) pollution events by @eustatic
 2 notes |  0 questions |  7 comments by @khufkens
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curve

0 people discussing

The accidental raspberry pi spectrometer by @khufkens
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data

3 people discussing

Simple Data Visualizations in R Studio by @laurel_mire
Data Cleaning with OpenRefine by @fongvania
Comparing Data Visualization Tools by @fongvania
 1 note |  0 questions |  2 comments by @khufkens
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diy

0 people discussing

Seeking for bioindicator protozoans with the DIY microscope by @alejobonifacio
[Talk Recording] Mobilizing People to Act on Air Pollution with the Bucket Air Monitor - a Community Science Tool by @amocorro
First Time Build: The Bucket Air Quality Monitor by @a1ahna
 2 notes |  0 questions |  3 comments by @khufkens
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evi

0 people discussing

Multispectral raspberry pi: EVI - NDVI comparison by @khufkens
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first

0 people discussing

i am new to this website , i am bit confuse how to get start , anyone can suggest me ?? by @mkay6123
The accidental raspberry pi spectrometer: first light by @khufkens
 1 note |  0 questions |  1 comment by @khufkens
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first-time-poster

201 people discussing

Participatory Irrigation development and Production: with reference to Indonesia condition by @jomrechegwuw
Question: Validity of Aquaculture Water Quality Test Kits by @jamontalbs
Creating a "videocamera" for passive dust collection over time? by @natematias
 1 note |  0 questions |  6 comments by @khufkens
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forest

1 person discussing

What does COVID-19 have to do with the climate and environmental crisis by @shubham8705
Tallow Rapid Assessment for Green Infrastructure by @eustatic
Forest Conservation Through Local Wisdom by @Dasta
 1 note |  0 questions |  2 comments by @khufkens
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growth

0 people discussing

Low floor, high ceiling for Public Lab research notes by @warren
PhenoPi: a citizen science phenology monitoring network by @khufkens
 1 note |  0 questions |  5 comments by @khufkens
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imaging

0 people discussing

New Developments in Multi-Spectral Drone Imaging in the Ultraviolet Band by @ektopyrotic
Drone NDVI Mapping with QGIS and Python Analysis Code by @ektopyrotic
Fusing 3D Modelling with NDVI in Python + VisualSFM + Meshlab by @ektopyrotic
 2 notes |  0 questions |  3 comments by @khufkens
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infragram

72 people discussing

Food Security Monitoring and Early Warning Systems with NDVI by @forcha
Infrared camera by @eduardo_gamosa
GSOC Report: full-screen UI and video upload on Infragram.org by @forcha
 1 note |  0 questions |  1 comment by @khufkens
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light

1 person discussing

Phone light, cereal box, dvd by @helenjoonie
How do I take root and hypocotyl pictures for plant without light influence by @Xing
Spectrometer: improvements by @chross
 1 note |  0 questions |  1 comment by @khufkens
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mapping

13 people discussing

Event: A conversation with Yutsi, creator of NORCO the game by @a1ahna
Drone Archaeology | Tomb Hunting Using NDVI, NIR Threshold with Bitwise NOT in Python by @ektopyrotic
How to visualize your location-based data in QGIS by @laurel_mire
 1 note |  0 questions |  2 comments by @khufkens
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multiple-camera

0 people discussing

Multispectral raspberry pi: EVI - NDVI comparison by @khufkens
Follow up on faucet cover camera enclosure by @patcoyle
 1 note |  0 questions |  0 comments by @khufkens
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multipspectral

0 people discussing

Add a filter on a Pi NoIR camera by @fsxskillz
Multispectral raspberry pi: EVI - NDVI comparison by @khufkens
Multispectral raspberry pi: first light (NDVI images) by @khufkens
 2 notes |  0 questions |  1 comment by @khufkens
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multispectral

2 people discussing

Use 3-D glasses to modify a camera for infrared by @umberto_rootman
Build an Infragram Pi Camera by @mimiss
Bringing Public Lab’s multispectral image processing to Leaflet maps by @warren
 1 note |  0 questions |  2 comments by @khufkens
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ndvi

69 people discussing

Infrared camera by @eduardo_gamosa
Question about NDVI white balancing by @Peve
Run infragram offiline (whitout online analysis) by @elucasfreitas
 3 notes |  0 questions |  8 comments by @khufkens
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ov5647

0 people discussing

OV5647 (raspberry pi camera) spectral response / quantum efficiency by @khufkens
 1 note |  0 questions |  3 comments by @khufkens
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phenology

1 person discussing

Jungle Rhythms - find the rhythm of tropical trees by @khufkens
PhenoPi: beta software installer release by @khufkens
PhenoPi: a citizen science phenology monitoring network by @khufkens
 3 notes |  0 questions |  8 comments by @khufkens
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phenopi

1 person discussing

PhenoPi: beta software installer release by @khufkens
PhenoPi: a citizen science phenology monitoring network by @khufkens
 2 notes |  0 questions |  6 comments by @khufkens
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pi

3 people discussing

White balance settings - pi NoIR camera with blue filter NDVI by @jdetka
infragram and Pi NoIR camera - NDVI not working by @agentnightingale
Bad NDVI Results from Pi NOIR with Blue Filter by @nstarli
 2 notes |  0 questions |  3 comments by @khufkens
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pi-camera

4 people discussing

PiCamera filter mounting system. by @wln215
What is an estimated cost for this project? by @pdhixenbaugh
MICROSCOPE CALIBRATION WITH IMAGE SEQUENCER by @MaggPi
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pri

0 people discussing

TetraPi: a well characterized multispectral camera by @khufkens
 1 note |  0 questions |  2 comments by @khufkens
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quantum-efficiency

0 people discussing

OV5647 (raspberry pi camera) spectral response / quantum efficiency by @khufkens
 1 note |  0 questions |  3 comments by @khufkens
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raspberry

1 person discussing

White balance settings - pi NoIR camera with blue filter NDVI by @jdetka
Public Lab's Microscope Set-up by @vanjo63
Bad NDVI Results from Pi NOIR with Blue Filter by @nstarli
 2 notes |  0 questions |  3 comments by @khufkens
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raspberry-pi

13 people discussing

Why the color of Infragram picture is different from what I take with my Raspberry Pi using Picamera API by @iman
Headless configuration and learning Shell, command lines, and git by @ajguthrie99
Update #1: OSIDC Senior Thesis Project by @Emmett_Dec
 4 notes |  0 questions |  6 comments by @khufkens
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recovery

0 people discussing

Jungle Rhythms - find the rhythm of tropical trees by @khufkens
 1 note |  0 questions |  2 comments by @khufkens
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response

0 people discussing

Can People Check out This Cartoscope for Hurricane Laura? by @eustatic
HealthyGulf: 4260 Gallons Estimate of TPIC Breton Sound 37 oil well gusher from Sentinel Satellite data by @eustatic
The accidental raspberry pi spectrometer by @khufkens
 1 note |  0 questions |  2 comments by @khufkens
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science

0 people discussing

Drone NDVI Mapping with QGIS and Python Analysis Code by @ektopyrotic
Fusing 3D Modelling with NDVI in Python + VisualSFM + Meshlab by @ektopyrotic
Masters research project 'Speculative Future on Mars: Online Co-design Workshop on saturdays' by @miles70
 2 notes |  0 questions |  7 comments by @khufkens
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spectral

0 people discussing

Can't access pi camera in Spectral Workbench by @lukemcpheters
Built the entry level paperkit by @Swede2
Assemble a DIY Papercraft Spectrometer by @abdul
 1 note |  0 questions |  2 comments by @khufkens
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spectral-response

0 people discussing

OV5647 (raspberry pi camera) spectral response / quantum efficiency by @khufkens
 1 note |  0 questions |  3 comments by @khufkens
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spectrometer

342 people discussing

[![Spec1.jpg](/i/47353)](/i/47353?s=o) by @Abraxas
First Attempt Bombed... But Why ? by @Abraxas
How to build affordable DIY Near Infra red Spectrometer for analyzing wavelength range 1000nm to 1800nm ? by @apk87
 1 note |  0 questions |  4 comments by @khufkens
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spectrometer

342 people discussing

[![Spec1.jpg](/i/47353)](/i/47353?s=o) by @Abraxas
First Attempt Bombed... But Why ? by @Abraxas
How to build affordable DIY Near Infra red Spectrometer for analyzing wavelength range 1000nm to 1800nm ? by @apk87
 1 note |  0 questions |  4 comments by @khufkens
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spectroscopy

5 people discussing

Anyboby with experience in measuring IR emissions between 8-13 um ? by @jfalquet
Open source spectrometer for detecting laser harmonics. by @wln215
Reading the individual pixel data from a piCamera sensor sans-lens? by @wln215
 1 note |  0 questions |  2 comments by @khufkens
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tetrapi

2 people discussing

TetraPi: a well characterized multispectral camera by @khufkens
 1 note |  0 questions |  2 comments by @khufkens
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tropical

0 people discussing

Jungle Rhythms - find the rhythm of tropical trees by @khufkens
 1 note |  0 questions |  2 comments by @khufkens
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vegetation

2 people discussing

Forest near Lake by @rohaidb
Image + Video Segmentation in Near-Infrared Using HSV Color Spaces with OpenCV in Python by @ektopyrotic
Drone NDVI Mapping with QGIS and Python Analysis Code by @ektopyrotic
 3 notes |  0 questions |  7 comments by @khufkens
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webcam

2 people discussing

Webcam and PVC Spectrophotometer by @CTormey
Every spectrum is on its side? by @wijnand_doffer
How can I process the images taken from modified camera? by @ThomasTaufan
 1 note |  0 questions |  1 comment by @khufkens
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@khufkens

@khufkens

Joined over 9 years ago | Moderator

5 followers • 0 following

I’m a research associate at Harvard University where my time is divided between modelling plant phenology across various biomes in response to climate change, being the lab geek and intrepid open source hardware and software developer.

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