znorman Posted April 7, 2016 Report Share Posted April 7, 2016 I'm working on a project now where I am trying to pre-process some UAV data from a MicaSense RedEdge sensor and get it into an analysis ready state. I think I have all of my steps figured out to pre-process the data, but I'm not sure about needing to apply dark subtraction or not. If I look at the exif metadata for my images, there are two tags called "Exif_Image_BlackLevel" and "Exif_Image_BlackLevelRepeatDim". Here are some specific values for the two fields: "Exif_Image_BlackLevel": [4924, 4927, 4914, 4927] "Exif_Image_BlackLevelRepeatDim": [2, 2] I was curious if anyone might now how I can use these two exif tags to apply a dark subtraction to my image. For some spectral indices this constant offset shouldn't affect my results too much, but it might have a big effect on other indices and I want to make sure I am correctly processing my data. Thanks for the help! Quote Link to comment Share on other sites More sharing options...
Lurker Posted April 12, 2016 Report Share Posted April 12, 2016 what software you use for post processing? Quote Link to comment Share on other sites More sharing options...
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