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