| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Hi, we're compiling input here: https://github.com/publiclab/spectrometer3/issues/25 for an October redesign. Thanks! " | Read more » | over 9 years ago | |||
| JoseBarreiros | "Hi, did you get the ov5647 spectral response?. I'm really interested in your project because I'm doing something similar but with an Aptina AR0130..." | Read more » | over 9 years ago | |||
| warren | "Great, thanks. I think we could relatively easily find a heavier material to make this work. Would you be able to post the picture of your sleeve p..." | Read more » | over 9 years ago | |||
| lukebrown | "@warren Have posted a response in your note with some webcam images to try and illustrate what is going on at my end. In terms of sleeve design, m..." | Read more » | over 9 years ago | |||
| warren | "Hmm, the embed isn't working in comments. I'm going to post a quick note: http://publiclab.org/notes/warren/07-13-2015/testing-if-light-leaks-thro..." | Read more » | over 9 years ago | |||
| warren | "Hmm, I just did a test in (admittedly cloudy) sunlight vs. closing the blinds, and covering the device with a thick blanket, and didn't see a big d..." | Read more » | over 9 years ago | |||
| warren | "We would love some input on selecting a better material for the spec v3 -- it's complex since not every black cardstock is actually black in the ne..." | Read more » | over 9 years ago | |||
| lukebrown | "@warren Thanks! The sleeve was just a piece of corrugated cardboard, about 3 mm thick, folded around the enclosure and secured with some tape. I’..." | Read more » | over 9 years ago | |||
| warren | "HI, Luke! Great post. What paper did you use for the sleeve? We chose the black paper as it's absorbent in the near infrared range, but do you thin..." | Read more » | over 9 years ago | |||
| cfastie | "Yes, those photos are good. Ideal photos have some live plants, maybe some recently dead leaves, and some things that are not foliage. Outdoor phot..." | Read more » | over 9 years ago | |||
| warren | "Specifically, I think we need to encourage people to structure experiments around what these cameras do best at the moment -- comparisons between v..." | Read more » | over 9 years ago | |||
| cfastie | "I think you're right that subjective is the wrong word. Maybe qualitative. A plant with an actual NDVI value of 0.5 may have an infragram NDVI valu..." | Read more » | over 9 years ago | |||
| warren | "Hi, Chris - I've been plugged into several other projects and really didn't have time to do this properly, and there was some confusion over the we..." | Read more » | over 9 years ago | |||
| cfastie | "A standard coefficient is a tough nut. The amount you would want to shift the NDVI values will differ a lot among photos. Exposure and color balanc..." | Read more » | over 9 years ago | |||
| warren | "It looks to me like both offer pretty good differentiation, but that the red filtered version depresses NDVI values. But since we're not assuming a..." | Read more » | over 9 years ago | |||
| warren | "You're right - we need to display the colormap in the saved images too -- but we haven't had any time to do further development on Infragram.org, s..." | Read more » | over 9 years ago | |||
| warren | "The colormap is based on one of yours: " | Read more » | over 9 years ago | |||
| cfastie | "Yes, I can't say much without seeing the originals. Someone familiar with what infragram.org does might be able to infer something. When I follow ..." | Read more » | over 9 years ago | |||
| warren | "Do you think there's nothing you can infer without the originals? I'm guessing you want to look at the blue/red gap? These are the camera serial n..." | Read more » | over 9 years ago | |||
| warren | "I think they're gone, honestly. The bug seems to affect images captured via the webcam direct connection, but not images which were uploaded. I don..." | Read more » | over 9 years ago | |||
| cfastie | "Can you attach the original photos from the camera? Or do they exist only locked in the burly depths of Infragram for eternity? " | Read more » | over 9 years ago | |||
| warren | "These are all NDVI except the third, normal looking one which I labelled "original". Unfortunately a bug in infragram is not allowing display of th..." | Read more » | over 9 years ago | |||
| cfastie | "I'm confused about which images are photos from the camera and which are NDVI images. It would also help to know what the colors mean in NDVI images. " | Read more » | over 9 years ago | |||
| gpenzo | "Hallo khufkens. Off the shelve approch is a very good way, if it does the job why not. I will keep an eye on your project. The main reason for the..." | Read more » | over 9 years ago |