Mathematical operation in Raster stack - NV5 Geospatial

Prev Go to previous topic

Go to next topic

Last Post 18 Apr 2019 10:08 AM by MariM

Mathematical operation in Raster stack

1 Replies

Sort:


You are not authorized to post a reply.

Author

Messages

Rajeev Bhattarai

New Member

Posts:11

18 Apr 2019 08:24 AM
Hi, I have a raster stack of 15 rasters and another stack of the same number of raster layers. Now I want to subtract one layer from another from two stacks. How can I do that quickly? ENVI allows me to do calculations only in a single band basis. Is there any way to do operations in a stack quickly? Thanks in advance.

MariM

Veteran Member

Posts:2396
Veteran Member

18 Apr 2019 10:08 AM
You can only do this if the stacks are the same dimensions and pixel sizes and assumes they are coincident with each other. Then in Band Math, you can use: float(b1) - float(b2) Then use 'Map variable to input file' and select stack1 as 'b1' variable and stack2 as 'b2' variable.

You are not authorized to post a reply.