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What is the maximum acceptable co -variance level of training sites for Landsat 8 image classification?

Question asked by asiimwe@atwooki2 on Sep 23, 2016
Latest reply on Sep 24, 2016 by Dan_Patterson

While classifying Landsat 8 imagery for change detection purposes,what is the maximum acceptable co -variance level of training sites in ArcMap? I have seen co- variance  figures going to 1,000,000 - plus, yet for Landsat 7 Parece and Campbell (2013) talk of figures not higher than 2000 as acceptable.

Abubakar

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