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Author Comment Last activity Moderation
gauravano "test comment " | Read more » almost 3 years ago
gauravano "Nice post @divyabaid16 !! " | Read more » almost 3 years ago
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warren "It looks like there may be a tiny light leak in the upper right corner -- see the little white dot? This could create a shaft of light through the ..." | Read more » over 4 years ago
liz "On Android, use the Firefox browser. It allows you to choose which camera to look through. " | Read more » almost 5 years ago
xose "Hi Vman what happened to me was that chrome doesn't even work with the front camera using iphone. Unfortunately It doesn't support WebRTC so it is ..." | Read more » almost 5 years ago
warren "Hi, would you mind looking through the FAQ to see if we can get some good documentation together about this additional question? If it doesn't exis..." | Read more » over 5 years ago
KIAS "Warren, I have downloaded csv file but then how will I be able to convert the RGB and wavelength values to calculate absorbance or transmittance? C..." | Read more » over 5 years ago
warren "Well, the compensation is based on the sensitivity of the semiconductor, mostly (i believe). I think you could try to block the wavelengths that ar..." | Read more » over 5 years ago
warren "https://github.com/publiclab/spectral-workbench.js is the core JavaScript modules which could be easier to run in isolation as well -- it's used in..." | Read more » over 5 years ago
warren "Yes, there is CSV, XML, and JSON data download for each spectrum. It's on the lower left side of the screen in a grey bar. Hope that helps! " | Read more » over 5 years ago
xose "Hi sohelikh, I don't know how to create a spectral distribution graph like those you say. The Spectralworkbench can be instaled in any computer run..." | Read more » over 5 years ago
soheilkh "Thanks Warren, (1) is there any specific filter that I can use to fix overcompensation of the light in your experience? maybe that will help in inc..." | Read more » over 5 years ago
warren "The raw spectra these DIY devices produce are not absolute calibrated per-color, so they may be more sensitive to blue than red. You could either i..." | Read more » over 5 years ago
soheilkh "The reason I was doubted the result is that I have way more red LEDs than blue. Both colors seems (visibly to eyes) to have comparable brightness, ..." | Read more » over 5 years ago
cfastie "Do you have some reason to think that the spectral output of the lamp should be different? Maybe the result you got is a good representation of wha..." | Read more » over 5 years ago
warren "The intensity is not an absolute measure - just a proportion of the dynamic range of the camera sensor. There are a few approaches to correcting fo..." | Read more » over 5 years ago
sarahcm "Of course, please feel free to change it; I can't seem to figure out how. Also, one last question; in addition to the percentage of intensity, is ..." | Read more » over 5 years ago
warren "Also, would you mind renaming this question "calibration error" or something similarly descriptive? I could also do it for you, if you like (I'm an..." | Read more » over 5 years ago
warren "You know what, I believe this was because there's a "(" in the title. Yes -- I was able to upload and calibrate a version which I'd renamed withou..." | Read more » over 5 years ago
warren "Oh sorry, I didn't see that -- will check the calibration now. " | Read more » over 5 years ago
warren "I do see an error when I try -- checking out on the server now... thanks for your patience! " | Read more » over 5 years ago
sarahcm "Thank you so much for all your work on this site. A couple girls have been working on a Science Fair project and are stuck on this piece. " | Read more » over 5 years ago