Support Public Lab Today! For the last twelve years, Public Lab has hosted SpectralWorkbench.org so that people everywhere can calibrate and analyze their spectra. Unfortunately, current circumstances have led us to scale back and take certain services offline. SpectralWorkbench.org will go offline as of August 15, 2022. The SpectralWorkbench platform runs on a combination of volunteer and paid labor by the many people that build, maintain, and operate it via Public Lab. This is an effective combination thanks to the culture of Public Lab's Coding Community. Public Lab's web ecosystem, including PublicLab.org, MapKnitter.org, SpectralWorkbench.org, Infragram.org and associated projects, takes 20 hours a week from three Code Coordinators and our sysadmin. While cost effective, it is not free. Web hosting and server costs for SpectralWorkbench are approximately $1000 per month. We are doing our best to sustain programming and support for our community, and we need your help. Thank you for being part of our community. We can't wait to be back online with you. Support Public Lab by making a donation today. ###What is Spectral Workbench? [SpectralWorkbench.org](https://spectralworkbench.org) is a web based application to collect, archive, share, and analyze spectral data, for Public Lab [DIY spectrometers](/wiki/spectrometer) and other spectrometers. With it, you can: * connect your USB [Desktop Spectrometry Kit](/wiki/desktop-spectrometry-kit-3-0) * scan and save samples * wavelength calibrate your spectrometer * plot light intensity as a function of wavelength (average digital consumer cameras have a range of 400 to 700 nm) * create sets of multiple spectra to visually compare and analyze scans * download CSV data for offline analysis * view others' data and discuss * find similar data in [a database of over 60k spectra](https://spectralworkbench.org/stats) No download is required -- just a web connection. The Chrome browser works best, but most standard-compliant browsers are supported. It is possible to use from an Android smartphone, preferably with the Firefox browser which allows you to specify which camera to look through. **** ###Contents * [Learn to use the software](/wiki/spectral-workbench-usage) * Learn about the [available tools](/wiki/spectral-workbench-tools) * Learn about [Calibration](/wiki/spectral-workbench-calibration) * Learn about the [Snapshots system](/wiki/spectral-workbench-snapshots) * Learn about the [Operations system](/wiki/spectral-workbench-operations) * [Spectrometry in general](/wiki/spectrometer) * [Applications & uses](/wiki/spectral-analysis) * [Construction](/wiki/spectrometer-construction) * [Desktop Spectrometry Kit](/wiki/desktop-spectrometry-kit-3-0) * [Foldable Mini-Spectrometer](/wiki/foldable-spec) * [Troubleshooting](/wiki/spectral-workbench-help) * [API Docs](/wiki/spectral-workbench-api) **** ###Intro video ## Browsers Spectral Workbench should work on Chrome (in Windows/Mac/Linux/Android, but not iOS), Firefox (Windows/Mac/Linux/Android), or Opera (Android). It may work on other browsers and we are working on expanding coverage; read more on this page: https://github.com/publiclab/spectral-workbench.js/issues/87 **** ## Development Do you code? The codebase of Spectral Workbench is available at https://github.com/publiclab/spectral-workbench. The server is written in Ruby on Rails, with a lot of client side code in JavaScript. You can read about [the JavaScript API here](/wiki/spectral-workbench-api). We really need more developers, so if you are interested, please get involved! A great place to start is the "plots-dev" mailing list for software developers: http://publiclab.org/wiki/developers **** ## FAQ We're collecting and working our way through a range of questions about Spectral Workbench -- if you can contribute your own questions, or answer others', please do! [questions:spectral-workbench] **** ## Troubleshooting If you feel you've encountered a bug with the software -- very possible! Please look through existing issues listed here, file a new one if you don't see something similar, and help to add any observations to existing issues shown here. Thanks for helping improve this open source software! [questions:spectral-workbench-issues] ...
| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| stevie | "Good work here. I like the blowout warning idea. Experimenting with the oil density is def. another good step, but I agree that the distinct variat..." | Read more » | over 9 years ago | |||
| stoft | "Looks promising. Maybe these are obvious but... - Pick 3-5 oils, or oil mixtures, as a reference test set -- low to high density -- then use them f..." | Read more » | over 9 years ago | |||
| warren | "Unfortunately some of these lines are covered by others. I guess I should make the key show a wavelength too? " | Read more » | over 9 years ago | |||
| warren | "OK, I added a couple more features -- one which bisects a graph with a vertical line where the area of the graph is equally divided -- what's that ..." | Read more » | over 9 years ago | |||
| warren | "Hmm, I'm worried that the ~840nm spike is just a camera artifact -- see how it's also represented in this spectrum of a halogen light through coca-..." | Read more » | over 10 years ago | |||
| warren | "Another thing to note is that the purple line is way out in the infrared (far enough that we know this despite the miscalibration) and NIST data we..." | Read more » | over 10 years ago | |||
| liz | "This is awesome work! " | Read more » | almost 11 years ago | |||
| Sreyanth | "Find my new note here: http://publiclab.org/notes/Sreyanth/07-29-2013/finding-closest-match-spectra-from-the-database-gsoc-work-done-so-far " | Read more » | almost 11 years ago | |||
| stoft | "No problem; I'm glad you found my observations useful. I look forward to reading your new research note. Dave " | Read more » | almost 11 years ago | |||
| Sreyanth | "Hi Dave, Sorry for getting back to you this late. I agree with you completely. I had the idea of using the data as 2D imagery at the first. But a..." | Read more » | almost 11 years ago | |||
| warren | "Hi, Peter - great suggestions -- our main limitation is that we're short on programmers; are you interested in implementing any of this using the A..." | Read more » | almost 11 years ago | |||
| stoft | "Sreyanth, Good start at wrapping some descriptive boundaries around a tough project. However, after a bit of googling, it raised some questions I ..." | Read more » | almost 11 years ago | |||
| sonofaquark | "Good idea. This sounds pretty much like the way the search for pot plants with aerial photos. It seems to work pretty well for them. " | Read more » | about 11 years ago | |||
| warren | "its always fascinating to me how visual and audio waveform data respond to similar technical approaches... I'm working on this color classifier: h..." | Read more » | over 12 years ago |