infragram

The Infragram project brings together a range of different efforts to make Do-It-Yourself plant health comparisons possible with infrared photography. This project was made possible with support from Google and the [AREN Project at NASA](https://www.globe.gov/web/aren-project/). ## Uses Vineyards, large farms, and NASA all use near-infrared photography for assessment, usually by mounting expensive sensors on airplanes and satellites. Infrared analysis is used for a variety of things, but most focus on assessing plant health, such as: * to assess crops and the efficacy of #agriculture practices * better #soil management (reducing #fertilizer, soil treatments) * in #wetlands analysis [![Screenshot_2017-10-18_at_11.59.57_AM.png](https://publiclab.org/system/images/photos/000/021/972/large/Screenshot_2017-10-18_at_11.59.57_AM.png)](https://publiclab.org/system/images/photos/000/021/972/original/Screenshot_2017-10-18_at_11.59.57_AM.png) Just as cell phone video has become instrumental in accountability today, we aim to democratize and improve reporting about environmental impacts. **** ## Getting started To start to do your own infrared analysis project, you'll need: 1. **[Photos](#Getting+images)**: A way to take near-infrared photos AND matching regular visible light photos from the same angle (in a single camera or two matched cameras) 2. [A **question** you'd like to answer](#Study+design) -- look through these templates for how to design your analysis 3. **[Software](#Software)** for processing and analysing your photos 4. **[Analysis](#Analysis)** -- tips and support to interpret and understand what your images are telling you **** ## How it works ### Background In 2014, we launched an early version of this project on Kickstarter, and the video is a good overview of the project, although we've come a long way since: <iframe width="480" height="360" src="//www.youtube.com/embed/ZVbC3UxlX8c" frameborder="0" allowfullscreen></iframe> _The [Infragram Kickstarter](https://www.kickstarter.com/projects/publiclab/infragram-the-infrared-photography-project) video, a great introduction to the project._ **** ![](/system/images/photos/000/001/163/medium/ae1b83ecbee137927d2079336d5dbde9_large.png) ## Infragram starter kits The [Public Lab Store](http://store.publiclab.org) offers a range of Do-It-Yourself kits to convert cameras for infrared photography, as well as ready-made cameras like the [Infragram Point & Shoot camera](/wiki/infragram-point-shoot): > [Get a kit to start](https://store.publiclab.org/collections/diy-infrared-photography) Also see [Getting images](#Getting+images), below. **** ## Conversion types There are three major ways to produce multispectral "infragram" images: * Two-camera - one near-infrared camera and one normal RGB camera * Single camera w/ red filter - replacing blue with infrared * Single camera w/ blue filter - replacing red with infrared Since these are a hard to keep track of, here's a diagram to show the three main types (you can [edit the diagram here](https://docs.google.com/presentation/d/1hIR68D9sW16_A2eYAi4QJCrWagG4j89BTB7m15Ubom4/edit#slide=id.g3cb9c89f54_0_0)): [![infragram-types.png](/i/25365)](/i/25365) **** ### Comparing plant health An important limitation of most DIY techniques is that we are using uncalibrated cameras, and so the analysis works best when we compare two vegetated areas under the same conditions (light, angle, time of day) rather than just take a photo of a single region. That is, the DIY approach is based on relative, or comparative, uses -- you can't learn a lot without a point of comparison. [questions:ndvi-comparison] An easy way to do a comparison is: 1. compare two areas (with the same type of plants) within a single photograph 2. compare two photographs with the same camera settings and lighting conditions (angle, brightness, color), of the same plants [illustration] Learn more at [Comparing Plant Health](/wiki/comparing-plant-health) **** ## Software Doing [NDVI analysis](/wiki/ndvi) on plants requires post-processing both infrared and visible images (or a combined image -- see [Getting images](#Getting+images)) into a composite image, using the NDVI equation (or another like it). This can be done with a variety of software; see this page for more: > [Infrared software](/wiki/infrared-software) **** ## Questions Post questions or troubleshooting requests here, for example about: * making sure your camera is working (color balance, exposure, light source) * what to compare against (see study design) * different lighting conditions or angles [questions:infragram] **** ## Activities [activities:infragram] **** ## Challenges We're working to refine and improve DIY infrared photography on a number of fronts; here, take a look at the leading challenges we're hoping to solve, and post your own. For now, we're using the Q&A feature, so just click "Ask a question" to post your own challenge. Be sure to add: * constraints: expense, complexity * goals: performance, use cases [questions:infragram-challenges] **** ## Getting images To start, you'll need **near-infrared images** and regular **visible light images** of the same scene -- or an image which combines these in different color channels. There are sources of #remote-sensing imagery from satellites and planes you can use, but the Infragram project is about making and using low-cost converted cameras to take our own images. There are both **single camera** and **dual camera** ways of doing this, and each has pros and cons. [Get a kit here](https://store.publiclab.org/collections/diy-infrared-photography) or learn about converting a camera here: > [Infrared Camera Conversion](/wiki/infrared-camera-conversion) **** ### White balance <img style="float:right;margin:10px;" src="//publiclab.org/system/images/photos/000/001/160/thumb/Screen_Shot_2013-08-15_at_7.46.36_PM.png" /> We've learned that careful white balancing of your converted Infragram camera is essential for good NDVI images. Learn how [in this short video](/notes/warren/08-15-2013/white-balancing-a-canon-camera-for-infragram-photography) and [read in depth on the topic in research by Chris Fastie](/notes/cfastie/06-17-2013/white-balance). There is also a wiki page on the subject at http://publiclab.org/wiki/infrablue-white-balance If you're using an [Infragram Point & Shoot](/wiki/infragram-point-shoot) (aka Mobius Action Cam), see [this page for a guide on setting the white balance of that camera](/wiki/infragram-point-shoot#Activities). <img style="float:right;margin:10px;" src="/system/images/photos/000/001/171/medium/infrablue.png" /> **** ### Filters _Should you use a **RED** or **BLUE** filter?_ See [Infragram filters](/wiki/infragram-filters) for more on different filters and how well they work. Early research by Public Lab contributors led to a blue filter technique for making Infragram cameras. But recent research on PublicLab.org has shown that red filters work better -- and on a wider range of cameras. Blue filters did not work on most CMOS cameras, especially cheaper webcams. Public Lab kits now ship with the red **Rosco #19 "Fire" filter**. **** ## Give or get help Here are some resources to get help converting or using your Infragram camera. Keep in mind that we are a peer driven community and we encourage everyone to give as well as receive assistance and support! [questions:infragram] When describing your question or answer, please include details of the equipment and process you are using [as described here for Infragram photos](http://publiclab.org/notes/cfastie/07-17-2013/infrablue-minutiae) . Also see our older FAQ here: https://publiclab.org/wiki/infragram-faq **** ![dorn](https://i.publiclab.org/system/images/photos/000/000/342/medium/dorn) ![kites](https://i.publiclab.org/system/images/photos/000/000/343/medium/kites) <div class="container"> <div class="span3"> <b>DIY Filter Pack:</b> This is just a piece of "superblue" filter which you can use to turn your webcam or cheap point-and-shoot into an infrared camera. The filter allows you to take an infrared photo in the "red" channel of your camera, and a visible image in the "blue" channel. The <a href="http://store.publiclab.org/products/infragram-diy-filter-pack">Public Lab kit</a> comes with a white balance card and instructions on how install your filter -- it's pretty easy! </div> <div class="span3"> <b>Infragram Point & Shoot:</b> This is a straightforward, if basic, point-and-shoot camera which we're getting a factory to pre-convert with infrablue filters: you can simply take photos as you normally would, then upload them to our <a href="http://infragram.org">free and open-source web app</a> to quickly and easily get a variety of composite images and analyses (the site is currently in beta with minimal initial features). </div> </div> **** _"We're excited that Public Laboratory is developing a low-cost infrared camera which will help us **track the success of wetland restoration projects in the Gulf Region--as well as help us track pollution.** The Gulf Restoration Network has been using the aerial monitoring techniques that Public Lab developed, so having the infrared camera available to put on the balloon and kite rig will only expand the applications of that technology as well as add value to airplane monitoring flights that help us watchdog the oil industry in the Gulf."_ -- [Scott Eustis](http://publiclab.org/profile/eustatic), M.S., Gulf Restoration Network ### More information The Public Lab community has been building up a knowledge base in DIY infrared imaging for years. Read more about the [history of this project here](http://publiclab.org/wiki/near-infrared-camera-history) ![dual](https://s3.amazonaws.com/ksr/assets/000/581/547/defb8db0662fd4b54a515b7457a89976_large.png?1368219190) ![melange](https://s3.amazonaws.com/ksr/assets/000/581/552/6aa9b7a67ec720c4b8b3388b5582891e_large.png?1368219243) **** ### Infragram instructions and graphics _Digital files for the filter pack envelope (including logo) and instructions:_ <a href="https://i.publiclab.org/system/images/photos/000/001/934/original/infrablue-filter-envelope-color.pdf"><i class="icon icon-file"></i> infrablue-filter-envelope-color.pdf</a> <a href="https://i.publiclab.org/system/images/photos/000/001/933/original/infragram-instructions-0.3.pdf"><i class="icon icon-file"></i> infragram-instructions-0.3.pdf</a> <a href="https://i.publiclab.org/system/images/photos/000/001/935/original/infragram-instructions-back-0.2.pdf"><i class="icon icon-file"></i> infragram-instructions-back-0.2.pdf</a> _Sketchup model for the "filter switch" graphic:_ <a href="https://i.publiclab.org/system/images/photos/000/001/936/original/filter-switch.skp"><i class="icon icon-file"></i> filter-switch.skp</a> ### Datasheets Datasheet for Infragram Webcam: <a href="https://i.publiclab.org/system/images/photos/000/003/463/original/infragram-webcam-new-old-diagram.pdf"><i class="icon icon-file"></i> infragram-webcam-new-old-diagram.pdf</a> Focal length of the camera:3.27mm. Chip sensor size for the camera: Sensor:ov2643,SIZE:1/4" <a href="https://i.publiclab.org/system/images/photos/000/004/500/original/Spec_of_JDEPC-OV04_Ver_1.01.pdf"><i class="icon icon-file"></i> Spec_of_JDEPC-OV04_Ver_1.01.pdf</a> <a href="https://i.publiclab.org/system/images/photos/000/004/501/original/Module_XJD__OEM_-_final_version_-_July_30-2013.xlsx"><i class="icon icon-file"></i> Module_XJD__OEM_-_final_version_-_July_30-2013.xlsx</a> <a href="https://i.publiclab.org/system/images/photos/000/004/502/original/HK-7035AS-582-2-M7_Model_(95955).pdf"><i class="icon icon-file"></i> HK-7035AS-582-2-M7_Model_(95955).pdf</a>

Contributors for infragram

Alias of: multispectral-imaging

by views by likes


270 contributors

306 research notes

0 wiki pages

Contributor Notes
Notes »
warren Notes »
mathew Notes »
liz Notes »
sara Notes »
Shannon Notes »
gonzoearth Notes »
ncraig Notes »
cesarharada Notes »
danbeavers Notes »
patcoyle Notes »
nedhorning Notes »
shaief Notes »
pablo Notes »
jbreen Notes »
John_Wells Notes »
eustatic Notes »
cfastie Notes »
cindy_excites Notes »
mollydanielsson Notes »
PlanetenPaultje Notes »
btbonval Notes »
donblair Notes »
Bob Notes »
aldehyde Notes »
wward1400 Notes »
cversek Notes »
nicholas Notes »
ttaylor Notes »
geobduffy Notes »
funkycbj Notes »
djibi2 Notes »
jaluna Notes »
kykytos Notes »
jalarid Notes »
jyalarid Notes »
bilco1 Notes »
lemmiwinks Notes »
MegaFlare252 Notes »
carllipo Notes »
dsittenfeld Notes »
cschweik Notes »
radialmind Notes »
jbest Notes »
bc512 Notes »
bsugar Notes »
fevegal Notes »
Bronwen Notes »
mrrg Notes »
pfoltyn Notes »
ceefoster Notes »
ikerluna Notes »
ajawitz Notes »
kgradow1 Notes »
mark9700 Notes »
IntiE Notes »
azaelb Notes »
Chernabog Notes »
andresc4 Notes »
nicorem Notes »
Dongjie Notes »
Thorsten Notes »
kanedan29 Notes »
timmm063 Notes »
nathanathan Notes »
Roolark Notes »
drkatnz Notes »
franknearir Notes »
Tbtouaki Notes »
fnok Notes »
daniedb68 Notes »
gpenzo Notes »
Korartiz Notes »
Albertazzi Notes »
jasperzanco Notes »
geraldmc Notes »
woodcmiami Notes »
fliperbaker Notes »
santizion Notes »
jdburnett Notes »
zorn Notes »
PeeBee Notes »
camilochiang Notes »
Jaco Notes »
air_maiden Notes »
ghk Notes »
ajchavar Notes »
msfisher Notes »
stevie Notes »
amysoyka Notes »
balsip Notes »
ivalethia Notes »
kendrick90 Notes »
jlspereira Notes »
rway Notes »
Philgib Notes »
nbawawa Notes »
headj Notes »
AerieWorks Notes »
zengirl2 Notes »
daddyboomalati Notes »
allie01 Notes »
natalie Notes »
lucenk Notes »
noctividus Notes »
Henry0815 Notes »
sabinozootec Notes »
GreenLeaves Notes »
jarrarte Notes »
DroneGo Notes »
theowallis Notes »
WhiteRabbit Notes »
amandaf Notes »
paulokemperfilho Notes »
ostman Notes »
ggallant Notes »
aswicks Notes »
alanw Notes »
lorati Notes »
lfent Notes »
trizcs Notes »
airfix4 Notes »
mlvitor Notes »
NickJemis Notes »
pjsbill Notes »
Mohamed Notes »
aguchosolano Notes »
Monoxyde Notes »
carlozousa Notes »
qdominus Notes »
blkswanpres Notes »
ReLaMa Notes »
davidminn Notes »
arsenix Notes »
bobmathieson Notes »
pswigert Notes »
manattta Notes »
Giovanni1983 Notes »
zeigerpuppy Notes »
limon93 Notes »
bwarzak Notes »
jason97m Notes »
SWeedenWright Notes »
dbehr Notes »
fgiorlando Notes »
khufkens Notes »
RQ-05 Notes »
Jimo1966 Notes »
clayton Notes »
DFlores6073 Notes »
agustin_castellano Notes »
fjcaceres Notes »
ShintoSunrise Notes »
peauproductions Notes »
cooperbreeden Notes »
elador Notes »
jimsford Notes »
SangHo Notes »
leandro Notes »
tonyc Notes »
admaltais Notes »
icarito Notes »
CHUMBA Notes »
Jogomez74 Notes »
GFFchris Notes »
Jakub Notes »
everydayduffy Notes »
pdhixenbaugh Notes »
marfisistemidroni Notes »
ThomasFinanPhD Notes »
wmaiouiru Notes »
Claytonb Notes »
JacobNederend Notes »
shinnen Notes »
Parth Notes »
carolccarvalho Notes »
mnzr Notes »
bortek Notes »
JohnsonC Notes »
ino Notes »
berkelha Notes »
FrankA Notes »
Matthew318 Notes »
Gianni_Gadaleta Notes »
talha Notes »
williampasco Notes »
abdul Notes »
maykef Notes »
Davidkao Notes »
spandan1234 Notes »
Winter Notes »
alexrfholland Notes »
Artichoke23 Notes »
iamkat Notes »
will123 Notes »
curiousity Notes »
aldrin Notes »
Ajith_Kumar Notes »
imvec Notes »
kaushalsingh Notes »
xose Notes »
suman Notes »
jfd Notes »
MaggPi Notes »
dannysmith Notes »
J_tanna Notes »
rs806 Notes »
platteferguson Notes »
ccpandhare Notes »
sujayj Notes »
BenR Notes »
reversevector Notes »
belkinsa Notes »
plam Notes »
jenjimah Notes »
saangpe Notes »
Clash Notes »
Sidney_AstroPlant Notes »
sid Notes »
camiloreyes Notes »
kanakiyab Notes »
ashishkochaar Notes »
hppyromz Notes »
BettyeGagner Notes »
iolanthe82 Notes »
fswank Notes »
robotfarms Notes »
rrstrauss Notes »
plnedestroyer Notes »
giuliooooo Notes »
James_Vagabond Notes »
tech4gt Notes »
Endure1 Notes »
cedarlodge Notes »
elaineyuyu Notes »
RehmaanMalik Notes »
Aman007 Notes »
csteran Notes »
Randall Notes »
Chus Notes »
Hala73 Notes »
DaleHCook Notes »
cheneyshreve Notes »
DrC Notes »
silentsairam Notes »
carlcrott Notes »
Aezys Notes »
ARMann Notes »
Muneeswaran Notes »
CD3000 Notes »
Anice Notes »
cagiva Notes »
Corymbia Notes »
petter_mansson1 Notes »
anothal3v3l23 Notes »
nstarli Notes »
jmdavison12 Notes »
ankurp836 Notes »
molangmuir10 Notes »
kauemv2 Notes »
baungaard Notes »
evan_lesmez Notes »
sibujacob Notes »
web20tpo Notes »
shivparkash05 Notes »
admi12 Notes »
js7520047 Notes »
nickyshen0306 Notes »
smsficks Notes »
hengrumay Notes »


See more people near here

Public Lab is open for anyone and will always be free. By signing up you'll join a diverse group of community researchers and tap into a lot of grassroots expertise.

Sign up