MULTIPLE ROI STATISTICS OUTPUT - NV5 Geospatial

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Last Post 03 Nov 2011 01:10 PM by anon

MULTIPLE ROI STATISTICS OUTPUT

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anon

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03 Nov 2011 01:10 PM
I have been following the community for a while and I still don't see a resolution to this issue. Is there a way to output the statistics from many ROIs (>1000) to a format readily readable by graphing / statistical packages? This seems like it should have been built into ENVI however the output statistic files separate each ROI and all of the data consecutively. Ideally it would output to a text format that has the ROI as rows and band stastistics as columns.... is this possible? ERDAS Imagine can do this through its signature editor but I don't want to have to use that software here. Thanks in advance David

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03 Nov 2011 08:43 PM
I'm not 100% clear what you're trying to do - "the output statistic files separate each ROI and all of the data consecutively" doesn't make a lot of sense to me, but there's the "output ROI to ASCII" option - is that what you're saying doesn't do what you want? If it doesn't, it'd be pretty easy to write a little code to make ENVI output whatever you want. That text format you mentioned with ROI's as rows and stats as columns would definitely be possible (and likely pretty easy), for example...

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26 Mar 2013 10:58 AM
Hello... Have you found a solution? I have the same problem and saving the outputs in an ASCII format takes too much time and even ENVI stops working. I have like 58 ROIs and I also want to have at least the mean as a column. I tried to do it in Arcmap but still couldn't find any solution. How can you do it in ERDAS by signature editor. Thanks in advance. Nayo

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