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Author Comment Last activity Moderation
richardbowman "Hello, I thought I'd chime in after your shout-out of the work we're doing. Our OpenFlexure eV software does attempt to get as close as we can to ..." | Read more » over 5 years ago
fanny1 "This article is very well written. I will come back to read it for more information. Thank you for all this useful information. http://bit.ly/2WAoe..." | Read more » over 5 years ago
stoft " Yes, once the camera exposure is under control (and fixed value) then the linearity can be measured -- IF you have controlled means of adjusting t..." | Read more » over 5 years ago
jenjimah " Done! " | Read more » over 5 years ago
warren "I should post a screenshot of my settings at the bottom there in case anyone wants to see or copy. Oh, i'd love to see this, thanks! " | Read more » over 5 years ago
jenjimah "In the code of the pi camera library, which is what many of the other libraries are built on, there is a special data export option called .array w..." | Read more » over 5 years ago
jenjimah " Ah yes! For a moment there I was confused between what the paper was saying about non linearness applied to pixels prior to data export and AGC. I..." | Read more » over 5 years ago
stoft "From that link, I found a 'settings' file here: https://gitlab.com/bath_open_instrumentation_group/picamera_cra_compensation/blob/fdb98308149e686a..." | Read more » over 5 years ago
jenjimah " @stoft I tried reading about the raw RGB ouput on the picamera documentation but I did not find the description to have too much information, but ..." | Read more » over 5 years ago
jenjimah " Thanks! I just had a look at their manuscript. There are a lot of details there that I had no idea about and need to learn. " | Read more » over 5 years ago
warren " Hi, just in case you didn't see this I recently came across this, which could be helpful maybe? https://gitlab.com/bath_open_instrumentation_grou..." | Read more » over 5 years ago
stoft " Right, the camera's do automate as much as possible, which works against the needs of spectrometers. If the AGC cannot be shut off, then it become..." | Read more » over 5 years ago
jenjimah "Great question, it's pretty amazing you were able to shut off the AGC circuit. I had previously imagined that most ofthe pre-data export operations..." | Read more » over 5 years ago
stoft " Good work and observations. Yes, I think HDR techniques can help extract additional dynamic range from these simple cameras. In reading through yo..." | Read more » over 5 years ago
warren "@warren awards a barnstar to jenjimah for their awesome contribution! " | Read more » over 5 years ago
jenjimah " Hi Dave, I know you made this post quite a while ago. Have you done any other exploration in HDR? I am trying to include it in an app that would a..." | Read more » over 5 years ago
warren "Oh, https://twitter.com/SpectralWB " | Read more » over 10 years ago
warren "Hi, Pascal - i wanted to know if it's OK for me to use your lead image as the SpectralWB twitter feed profile background? If you have a version wit..." | Read more » over 10 years ago
bgamari "Jeff, it seems to me that real-time curvature correction shouldn't be so hard. Estimation of the observed curvature only needs to happen periodical..." | Read more » over 10 years ago
warren "Chrome camera switching partially working; need to debug on Chrome for Android though. Can you try it out? https://github.com/jywarren/spectral-wor..." | Read more » over 10 years ago
stoft "Jeff, I constructed a few more slotted filters which just bend a bit and fit in front of the smartphone slit. The camera focus difficulty limits th..." | Read more » over 10 years ago
warren "Huh, very strange that the comment is gone! No worries though... trying to make more time to code in the next week or so too. GSoC is energizing an..." | Read more » over 10 years ago
stoft "Yes, true. No slight intended. I edited my comment to note that 'broken' means only that the disconnect between the app and Chrome Beta is still th..." | Read more » over 10 years ago
warren "I think auto-focus varies from phone to phone... I haven't had an issue myself with that but it'd be good to know which phones suffer from rapid au..." | Read more » over 10 years ago