Changes between Version 2 and Version 3 of Processing/problemsHS


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Timestamp:
Sep 10, 2012 6:19:55 PM (7 years ago)
Author:
adbe
Comment:

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  • Processing/problemsHS

    v2 v3  
    22
    33This page details common problems with hyperspectral processing and their solutions.
     4== apl ==
     5'''Dark Frames'''[[BR]]
     6If there are missing dark frames for a line extract some from another file. To find a matching file look for a hdr file with matching:
     7  *  Bands
     8  *  Samples
     9  *  fps
     10  *  tint
     11If you cannot find a matching tint value this can be solved later, look for files from the same year and closest julian day possible.
     12
     13Then run:   extract_dark_frames -i VNIR300-08-1.raw -o VNIR300-08-1-dark_frames.bil
     14
     15This will extract the dark frames to an output file that is then specified in the aplcal section of processing: cal_args_extra = -darkfile VNIR300-08-1-dark_frames.bil
     16
     17If the tint does not match then you need to scale the dark frames, this in done:   dark_frame_scaling.py -i VNIR300-08-1-dark_frames.bil -t 10
     18
     19This will scale the dark frames values so that the the tint matches the file with missing dark frames.
     20
     21== az ==
    422
    523'''Sync'''