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Hi, I have this particular assignment. I generate two raster images with some values. I made difference, so then I got one raster image and then I have to reclassify this image but threshold is ''2 * Standard deviation + mean'' of this image. I know how to do it in ArcGIS but I would like to make it in ModelBuilder. It is possible to calculate SD and mean then do that formula ''2 * Standard deviation + mean'' and then make threshold for reclassify. I hope it is some way to do it. Best regards
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04-09-2012
08:49 AM
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Problem solved I had input raster without spatial references So I used focal statistics I put weight for neighbourhood and made kernel file in notepad and it works 🙂 Thanks
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04-09-2012
04:02 AM
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Hi, thank you, it really helps. But I have some issues with kernel files. In focal statistics I have some errors: ERROR 000622: Failed to execute (FocalStatistics). Parameters are not valid. and ERROR 010391: Kernel file is not provided or does not exist. I don't understand why is that because those are my kernel files: 3 3 -1 0 1 -2 0 2 -1 0 1 and 3 3 1 2 1 0 0 0 -1 -2 -1 I don't know what I'm doing wrong. And I tried saved it in different formats and I had same errors. Thank you Best regards
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04-09-2012
12:22 AM
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805
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Hi, it is possible export toolboxes made in ModelBuilder to Grass GIS? I know I can expert python script but I don't know if is some way to import it to Grass GIS or if I can export it in some different way. Thank you very much.
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04-06-2012
04:51 AM
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Hi, I'm working with Landsat images and I would like run Sobel convolution kernel filter to find out borders of forests. But I don't have any experiences, maybe is simple and ArcGIS has some extension for this kind of operation or is some better way to find out borders (edges) of forests? Please help me. Best regards Martin Mokros
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04-01-2012
06:13 AM
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