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Question #4945

THEMIS NIGHTIME IR .CUB file grey scale issue

Added by Rutu Rutu 6 months ago. Updated 6 months ago.

Status:
Acknowledged
Priority:
High
Assignee:
-
Category:
Applications
Target version:
-
Software Version:
Test Reviewer:

Description

Hi Trent,

I downloaded Themis IR nighttime image. The image is RDR product with .cub extension. When I open this image in ArcMap the images seem to have some stretching issue, it is not clear. I also find the range bit confusing(highlighted in attachment). Ii attached the screenshot of the image. Can you advise something?

Thanks,
Rutu

THEMIS_IR.PNG View (212 KB) Rutu Rutu, 2017-06-21 08:11 AM

History

#1 Updated by Tammy Becker 6 months ago

  • Category set to Applications
  • Status changed from New to Acknowledged

#2 Updated by Trent Hare 6 months ago

Rutu,
Sorry but a link to that file would be good. So many different versions of these files. I don't see that file here:
https://viewer.mars.asu.edu//planetview/inst/themis/I10290005#P=I10290005,I08618047&T=3

tip -- before bringing data into ArcMap, it is good to calculate statistics first.
* Select one or more raster datasets. ...
* Right-click the raster dataset or selection of raster datasets and click Calculate Statistics. ...
* Optionally, type skip factors to use while calculating statistics. ...
* Optionally, type a value you want to ignore when calculating statistics. ...
* Click OK.
more: http://desktop.arcgis.com/en/arcmap/10.4/manage-data/raster-and-images/calculating-statistics-in-arccatalog.htm

That might help with the shown data range in the legend. It looks like the image is displaying fine though. If the numbers are the same in the legend then those are the values. But without the image I can't confirm.

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