Changes between Version 2 and Version 3 of Processing/problemsHS

Timestamp:

Sep 10, 2012, 6:19:55 PM (12 years ago)

Author:

adbe

Comment:

--

Processing/problemsHS

@@ -2 +2 @@
 
 This page details common problems with hyperspectral processing and their solutions.
+== apl ==
+'''Dark Frames'''[[BR]]
+If 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:
+  *  Bands
+  *  Samples
+  *  fps
+  *  tint
+If you cannot find a matching tint value this can be solved later, look for files from the same year and closest julian day possible.
+
+Then run:   extract_dark_frames -i VNIR300-08-1.raw -o VNIR300-08-1-dark_frames.bil
+
+This 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
+
+If 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
+
+This will scale the dark frames values so that the the tint matches the file with missing dark frames.
+
+== az ==
 
 '''Sync'''