I classified some land cover types in aerial image with Erdas Imagine, now I want to remove classification errors showing very small areas. I tried to use Sieve filter, but getting error notification "Data type doesn't match". I tried to use files with TIF and IMG extension. Does anybody know the reason?


Make sure you are sieving on the output of a clump. That is the only way it will work. There are pre-set models that you can use as a guide.

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