| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| stoft | "Or, they are all 'bad' (noisy) to some degree ;-) The sharpness of the peak is still mostly a factor of slit, mechanical rigidity, being light-tigh..." | Read more » | about 8 years ago | |||
| viechdokter | "Looks like at least there are no "bad" pixels as they all show about the same amount of noise. The time averaging seems to achieve a very sharp-pe..." | Read more » | about 8 years ago | |||
| stoft | "Actually, you need several additional pieces for SWB: 1) average 3-5 parallel lines, 2) monitor stability and take data until it IS stable or times..." | Read more » | about 8 years ago | |||
| stoft | "Ideally, the user would select a "stable" ('smooth' or 'broad peak') region to monitor and then the software would take samples (and average) while..." | Read more » | about 8 years ago | |||
| warren | "Excellent; so we'll think about timeframe plus # of samples. I think we could prompt people in the interface to "ensure stable reading" during a fe..." | Read more » | about 8 years ago | |||
| stoft | "Yes, I'd agree that time averaging would help and, if possible, it sould be the default to reduce this noise component. I do not have 30 fps data, ..." | Read more » | about 8 years ago | |||
| warren | "Great analysis. Based on this, I wonder if we should more strongly encourage people to do live capturing, and to have a time averaging default sett..." | Read more » | about 8 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 » | almost 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 » | almost 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 » | almost 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 » | almost 9 years ago | |||
| harrysafraz | "Yes drag and drop would be fine " | Read more » | almost 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 » | almost 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 » | almost 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 » | almost 9 years ago | |||
| warren | "The colormap is based on one of yours: " | Read more » | almost 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 » | almost 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 » | almost 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 » | almost 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 » | almost 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 » | almost 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 » | almost 9 years ago | |||
| khufkens | "Thanks Mathew for the link back! The whole package should work perfectly now, I'm still working on implementing the input output part, where I can..." | Read more » | almost 9 years ago | |||
| mathew | "sounds cool. here's the link back to the context and description of PhenoPi http://publiclaboratory.org/notes/khufkens/04-24-2015/phenopi-a-citiz..." | Read more » | almost 9 years ago |