Extract stretched values in ArcGis

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07-21-2016 08:35 AM
GabrielBarberes
New Contributor

I converted a Landsat-8 image from 16-bits to 8-bits in ArcGis. Now I want to extract the new values but there is something wrong. I have two different Z values: pixel and stretched values. The most important values are stretched (0-255) but I cannot extract. When I use the tool "Extract Multi Value to Point" the result is 255 for every point.

Somebody know what can I do to extract the stretched values or what is wrong with the process?

Thank you all

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DanPatterson_Retired
MVP Esteemed Contributor

it extracts the actual pixel value, not the stretched value

perhaps you need to go through this process first Color correcting raster data—Help | ArcGIS for Desktop

or similar

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