How to do a good mask - NV5 Geospatial - Help Forums

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Last Post 05 Dec 2013 01:50 PM by anon

How to do a good mask

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anon

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05 Dec 2013 01:50 PM
Hi, I work with ENVI 4.7. I need to mask an image in order to work only on shallow waters. For now, I only digitized an ROI from the coastline to all the land...It is long and it's not possible to do this for many images... So I want to find a technique based on pixel value. I know that I could choose "import range" in building mask, but could you please give me some advice to chose thoses ranges ? Thank you

MariM

Veteran Member

Posts:2396
Veteran Member

11 Dec 2013 05:53 AM
You could first try to define the areas of interest using the Density Slice tool. This could be output to a classification image, then ROI which could be imported to the Masking tool.

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