Prevent Layer Stacking from assigning NaN to 0's

Prev Go to previous topic

Go to next topic

Last Post 12 Oct 2015 11:55 AM by anon

2 Replies

Sort:


You are not authorized to post a reply.

Author

Messages

anon

New Member

Posts:

12 Oct 2015 11:55 AM
I have 80 landsat scenes that I have masked out clouds on for each individual band, and now I want to layer stack them and create some histograms. I realized though that when each individual band is stacked the no data pixels are being automatically assigned a value of 0. Is there a way to prevent this from happening since it messes up my histograms? Possibly this can only be done in IDL?

Deleted User

New Member

Posts:

12 Oct 2015 03:28 PM
You might be able to resolve this problem by setting 0 as the data ignore value in the ENVI Header of the output band stacked file. If that doesn't work, I would like to know what the masked pixel value is in the input files for the individual bands.

Deleted User

New Member

Posts:

13 Oct 2015 04:13 PM
In ENVI the values show up as 65535 for all landsat bands even though in ArcGIS they show up as no data, and then when I stack them it is still 65535 for all bands. So what I need to do then is before I stack change 65535 to no data for all bands.

You are not authorized to post a reply.