Hello, I'm trying to extract features from a QB image and I'm wondering how I could use an existing ruleset XML file to get the tool to work. Does the XML ruleset have to be created in ENVI EX 4.8? If so, does it need to come from the same image used in the EX workflow? I'd like to use a kind of 'template xml ruleset' that I could ideally apply to other QB images. When I look at the XML file that I saved from the ruleset feature extraction tutorial created in ENVI EX, it seems to contain all the image statistics (i.e. ranges of DN values etc.). Trying to not calculate all attributes or modifying the XML ruleset to make it 'generic' doesn't work and I always get an error message when I try to use the ENVI-ArcGIS extraction tool. My question would be, is there any 'generic' XML ruleset that I can use that lets me segment the image, using the ENVI-ArcGIS feature extraction tool based on my input scale level and maybe be able to modify the ruleset to extract certain features? If anyone has a solition I'd be very curious. Thanks, Mike