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I’m doing a project on landsat 5 images. I’ve composited the images into 1 raster, and I want to classify the raster with ISODATA Unsupervised Classification. How do I calculate the best number of classes in each group, the sample interval and the best minimum class size? thanks!

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Hi Yael. Are you trying to create a land cover classification or some other output? –  JWallace Feb 8 '13 at 18:17
    
Hi. I want to create a land cover classification. I'm trying to understand how to choose those values because I need to explain why I worked that way... –  Yael Feb 9 '13 at 8:08
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