Comments

Author Comment Last activity Moderation
nedhorning "I'm curious why you need at least 3 bands for automated classification. I don't have a specific classification task in mind. In general I'm working..." | Read more » over 10 years ago
nedhorning "That's a good observation. The hotspot in these test images would tend to be toward the bottom around the shadow from Chris' head since that's wher..." | Read more » over 10 years ago
nedhorning "If it's sunny tomorrow I'll be out with the wood, tar paper and other things. With a little luck I'll have a research note before the end of the we..." | Read more » over 10 years ago
nedhorning "I got a 3" x 3" Wratten 25A gel filter on ebay for $10. There's a lot left over if you want to try it. " | Read more » over 10 years ago
nedhorning "Chris - It's interesting that you find that the Canon Powershots don't record much NIR in the blue channel. I found just the opposite - that the bl..." | Read more » over 10 years ago
nedhorning "Thanks for your comments. I am rethinking the idea that a blue filter is sensitive to chlorophyll absorption. Blue wavelengths have similar reflect..." | Read more » over 10 years ago
nedhorning "Thanks for the comments Chris. I would be a little cautious drawing more than very broad conclusions at this point. The reflectance values for the ..." | Read more » over 10 years ago
nedhorning "Thanks for the comments Chris. I might have overstated the influence that different shutter speed, aperture and ISO could affect NDVI but I expect ..." | Read more » over 10 years ago
nedhorning "Hi Babu, As I was writing this I see you got some good comments - here are some more. Lots of good questions. I'm also looking for answers to som..." | Read more » over 11 years ago
nedhorning "Hi Babu, As I was writing this I see you got some good comments - here are some more. Lots of good questions. I'm also looking for answers to som..." | Read more » over 11 years ago