Public Lab has developed a number of open source software platforms to assist in the collection, analysis, storage, sharing, and conversion of data from our open source tools. The data storage and sharing websites,, and provide long-term storage for locally produced data, and convert and present that data in open, standard formats which are easy to use for the press, "scientists", and other advocacy groups while providing community researchers with a forum to discuss, interpret, and compare their data. For example, activists mapping oil contamination from the BP oil spill and those mapping water pollution in the Gowanus Canal have thoroughly documented their work on the Public Lab platform, publishing research notes as well as embeddable web maps at They have also achieved widespread media attention for their work, as well as, in NYC , a place on the EPA community committee involved in the canal cleanup project. _For more detail, visit All codebases are available on Github as linked below; the main Public Lab Github account can be found at **** [![mapknitter.png](]( ###MapKnitter [MapKnitter]( is our oldest codebase, since 2014 has provided a free and open source means to place, rectify, and stitch aerial photographs together; in particular those collected using Public Lab's open hardware Balloon Mapping Kit. Users upload images one by one onto a base reference map, and align them in a web-based GIS system. Completed maps are exported into standard formats including TMS, GeoTiff and more. **** ![Spectral Workbench]( ###Spectral Workbench []( hosts an archive of open source spectra collected with Public Lab's open source spectrometer. The website enables collaboration to refine and improve sample collection and analysis techniques to identify a growing number of materials. We imagine eventually hosting a comprehensive open library which can help to investigate chemical spills, diagnose crop diseases, and identify contaminants in household products. **** ![Infragram]( [](, our newest open source codebase, provides real-time multispectral image compositing for crop and vegetation analysis, as well as hosting of resulting open source images for the Public Lab collaborative research community. Users can upload images for analysis or even directly connect modified multispectral cameras and composite live video. **** ![]( The online research sharing platform we’ve created at []( provides a powerful -- and free -- means for local groups to publish and promote their work, and supports their advocacy by helping to organize events, coordinate data collection, storage, publication, and outreach. **High priority issues:** ...

Author Comment Last activity Moderation
theowallis "Thanks for your reply Chris! " | Read more » over 8 years ago
cfastie "Theo, I have gotten that error too, even when using my own pairs of simultaneous photos (I think the cameras' clocks were way off). I forget what I..." | Read more » over 8 years ago
unsignedint "Hello liz, I think B&W+Green reveals the presence of IR very clearly. The problem is that the intensity is hard to tell, so other color schemes..." | Read more » over 8 years ago
theowallis "Hi I am trying to process two images in Fiji, one raw infrared, one visible spectrum. When choosing the two image files from which to create a tex..." | Read more » over 8 years ago
cfastie "I don’t quite understand how this subtraction would work. When using a red filter, we expect the blue channel to record mostly near infrared light ..." | Read more » over 8 years ago
liz "This B&W and green image is so striking! " | Read more » over 8 years ago
nedhorning "Hi Alan, That sounds good. The first thing your son will realize is that I'm not a very talented programmer. I'm traveling until early next week b..." | Read more » over 8 years ago
unsignedint "Hello Chris! Answering your question What is the "A" in RGBA? Alpha. For this application, it probably does not make any difference whether I pas..." | Read more » over 8 years ago
cfastie "Blender looks to be quite capable. I have some questions about your 3 step process to make the color mapped image: What is the "A" in RGBA? You s..." | Read more » over 8 years ago
alanw "Hi Ned, I have a son who is a pretty good programmer and knows Java. I talked to him and he is seeing if he can use your plugin and add a piece to..." | Read more » over 8 years ago
nedhorning "Hi - At this point the plugin does not subtract the NIR from the red. I've been doing this subtraction as part of my calibration tests: http://publ..." | Read more » over 8 years ago
aswicks "Ned, Using a red filter, does the plugin subtract the blue (NIR) band from the red (red + NIR) to get a red band and then do the NDVI & DVI mat..." | Read more » over 8 years ago
warren "Justin, this is ambitious and super duper. Thanks and I'm excited to see things progress! Commenting has been a need for some time, but do consider..." | Read more » over 8 years ago
mathew "So excellent! I think it is prudent to integrate and streamline the features already spec'ed and leave supermap functionality for another day. " | Read more » over 8 years ago
justinmanley "All - thanks for a really great conversation about the future of MapKnitter. Here's how I've decided to proceed for the time being: I am focusin..." | Read more » over 8 years ago
warren "That has a real nice positive ring to it, mathew, thanks :-) I had actually thought of the Enterprise but was trying to hide my inner nerd. Never ..." | Read more » over 8 years ago
mathew "I agree with Justin's terminology and view plan. a double slider would be ideal for the history: in following Jeff's suggestion, I propose that ..." | Read more » over 8 years ago
warren "Haha, well, the power's in your hands here, Justin, as nobody else is likely to be coding on MapKnitter :-) -- I've definitely not had time in the ..." | Read more » over 8 years ago
justinmanley "It seems like everyone is not on the same page re: Jeff's vision for the future of MapKnitter. Mathew: as I understand it , Jeff is proposing that..." | Read more » over 8 years ago
mathew "How to address Chris's concerns on imagery adding/editing/sharing seems like a tough nut to crack. Is there any way to overlay different mapknitte..." | Read more » over 8 years ago
warren "ooh yeah, lock by default is nice. Basically an extra interaction to put the image in edit mode would be great. " | Read more » over 8 years ago
mathew "I really dig the sidebar concept, full screen map, and loading straight to the edit screen! I agree with Liz, this differs from a Wiki in the cruc..." | Read more » over 8 years ago
warren "Oh sorry, Justin - do you mean the part about But those two views will never change unless edited or deleted by the person who saved them. For th..." | Read more » over 8 years ago
warren "Yeah that's pretty much it -- and if you don't want what other people have added to a given area (an area you're working in, say) you can display o..." | Read more » over 8 years ago