I wanted to Ortho rectify GeoEye HR imagery using existing RPC and IFSAR DTM in Image Analysis. According to ArcGIS Resource center http://help.arcgis.com/en/arcgisdes...g_the_Orthorectify_button/009t000000mv000000/ the button is automatically active if the imagery has RPC file. In my case the ortho button was not active although my Imagery has RPC file. Please advice thank you.
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