求教BP监督分类问题

   我想将原始影象分类好的roi,用在另一张融合的影象上做BP监督分类的roi,这样做行的通吗?具体该如何做?

    还有BP监督分类完后,生成的图象是RULE的图象,它和通常的图象有什么区别吗,如何把它转成ERDAS的IMG格式.

   谢谢了.

 1.      Classification-->Post Classification -->Rule Classifier.

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        Click the Quick Apply button. A classification image based on the current settings is displayed in a new display window.

2       Saving the Classification Image

To save the displayed classification image to a file, click the Save to File button and enter or choose an output filename(HDF FORMAT ).    

3 RELAX     MYSELF.