imagej
imagej


Author Comment Last activity Moderation
JacobNederend "Thanks for the feedback. I think I misunderstood the function of this plugin. I thought I could calibrate my jpeg R/G/NIR images to a black, a gre..." | Read more » over 8 years ago
nedhorning "Hi Jacob, To check for aperture you could try another EXIF reader. Maybe "max aperture" is the same as "aperture" but I have no idea. When working ..." | Read more » over 8 years ago
JacobNederend "Hi Ned, I am really excited about the work you are doing here as it helps resolve some major issues with my grad studies. I have a few questions: ..." | Read more » over 8 years ago
nedhorning "Chris - The relationships are curvilinear but my preference is to try and figure out how to "correct" the JPEG pixel values to create a linear rel..." | Read more » over 8 years ago
cfastie "Ned, So the displayed graphs with two points are not meaningless (I found them to be helpful), but the R² values are not useful because they are a..." | Read more » over 8 years ago
nedhorning "Hi Cindy - I'll start with the easy question first. The user guide can be downloaded from the plugin's GitHub repository: https://github.com/nedhor..." | Read more » over 8 years ago
cindy_excites "Hi! Very exciting note! Thanks for sharing. Just wondering, could you expand a little more on "When the calibration coefficients are calculated a g..." | Read more » over 8 years ago
nedhorning "Unfortunately those values would only work if you had the same materials that I used. To get the reflectance values you would either need to fine s..." | Read more » over 8 years ago
aldehyde "How to get target reflectance values for the visible and near-infrared wavelengths that correspond with the camera filter? Can I use?. 0.7529225,0..." | Read more » over 8 years ago
nedhorning "Hi aldehyde - Did you look at the user guide on Github: https://github.com/nedhorning/PhotoMonitoringPlugin that should have information about crea..." | Read more » over 8 years ago
aldehyde "Please help. If it is possible to describe all the work with the plugin. How to create "сomma-separated variable (CSV) file with the reflectance v..." | Read more » over 8 years ago
nedhorning "Mathew - Have you been able to find a reflectance plot for those paints? I looked but didn't see it. Other paints I was looking at a couple years a..." | Read more » over 8 years ago
mathew "Rosco manufactures outdoor-grade TV paints including 60% grey (TV white) and black (3%) and chroma colors (blue, green). They would be good choices..." | Read more » over 8 years ago
jeffalk "You probably know about the EPA site with monitoring data around the Chicago coke facilities. The EPA data could be used to compare to whatever dat..." | Read more » over 8 years ago
liz "This is incredible work!!!! You guys are awesome! " | Read more » over 8 years ago
Monoxyde "Thank you, I thought, that by offering to plugin a VIS photo plus a NIR photo, Shooting by two identical cameras with the same parameters ISO etc ...." | Read more » over 8 years ago
cfastie "I am not sure what your question is. You could use the two-camera feature of the plugin but give it the same Wratten 25 photo for both the VIS and ..." | Read more » over 8 years ago
Monoxyde "Chris, do you feel that the Photomonitoring plugin is able to work better if I provide two images (from a modified camera and the other by the same..." | Read more » over 8 years ago
Monoxyde "Thanks Chris, your judgment lifts me up. I will try to make different calibrations. As soon as I can, I share the results and procedures. Thanks ag..." | Read more » over 8 years ago
cfastie "These are all very good NDVI images. The NDVI values seem to be close to the correct range, and there are not that many anomalies (most leaves are ..." | Read more » over 8 years ago
admaltais "Have you considered using reference charts used to calibrate green rooms in cinema? Some thing like this: labsphere - Reflectance Reference Targets..." | Read more » almost 9 years ago
nedhorning "This error will occur if you run the Create NDVI from Image plugin without having an image displayed in ImageJ. I added an error message to the nex..." | Read more » almost 9 years ago
warren "This is something that'd also benefit the general white balance process of Infragram cameras. I wonder, are there any paint sample strips that are ..." | Read more » almost 9 years ago
nedhorning "The panel order is not important as long as it's predictable and known. The "ideal" targets would probably be a few gray patches from bright to dar..." | Read more » almost 9 years ago