How to apply threshold on output Fraction RGB Image from Linear

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Last Post 02 Sep 2019 01:24 AM by Nasir Hameed

How to apply threshold on output Fraction RGB Image from Linear Unmixing tool.

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Nasir Hameed

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Posts:12

21 Aug 2019 02:40 AM
I am intending to apply threshold on output RGB Fraction Image produced by the Linear Unmixing tool in ENVI. The resultant image consists of three RGB bands (Soil, Vegetation and RMS Error), how would I apply threshold on Soil and Vegetation fractions contained within. Whether I am supposed to add them independently and apply threshold or there is alternate option/tool enabling me directly apply threshold on RGB image to isolate range of pixel values representing vegetation or soil?

MariM

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Posts:2396
Veteran Member

26 Aug 2019 03:02 PM
You can set thresholds to emphasize data ranges using the Raster Color Slices tool: http://www.harrisgeospati...ocs/ColorSlices.html The thresholds could show colored pixels that match a range of values that represent the abundance of material based on the unmixing values.

Nasir Hameed

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Posts:12

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