Hi Andy, Jonathan is referring to the Segmentation application:
http://orfeo-toolbox.org/Applications/Segmentation.html In this application there is the stiching mechanism and you'll be able to perform the connected component segmentation with an algebra expression. But note that this application will not allow to integrate the "masking" part and the thresholding using shape elongation... Manuel -- Manuel GRIZONNET CNES - DCT/SI/AP - BPI 1219 18, avenue Edouard Belin 31401 Toulouse Cedex 09 - France Tel: +33 561 282 630 - Fax: +33 561 283 109 ________________________________ De : [email protected] [[email protected]] de la part de Andy [[email protected]] Envoyé : mardi 10 juin 2014 09:09 À : [email protected] Objet : Re: [otb-users] Connected Component Segmentation polygon effect Hi, thank you for your answer. Unfortunately I don't know where I should enable that option. I am using the CC according to the cookbook example: #!/usr/bin/python # Import the otb applications package import otbApplication # The following line creates an instance of the ConnectedComponentSegmentation application ConnectedComponentSegmentation = otbApplication.Registry.CreateApplication("ConnectedComponentSegmentation") # The following lines set all the application parameters: ConnectedComponentSegmentation.SetParameterString("in", "ROI_QB_MUL_4.tif") ConnectedComponentSegmentation.SetParameterString("mask", "((b1>80)⋆intensity>95)") ConnectedComponentSegmentation.SetParameterString("expr", "distance<10") ConnectedComponentSegmentation.SetParameterInt("minsize", 15) ConnectedComponentSegmentation.SetParameterString("obia", "SHAPE_Elongation>8") ConnectedComponentSegmentation.SetParameterString("out", "ConnectedComponentSegmentation.shp") # The following line execute the application ConnectedComponentSegmentation.ExecuteAndWriteOutput() Adding a line like "ConnectedComponentSegmentation.SetParameterInt("mode.vector.stitch", 1)" does not do the trick. Andy On Friday, 6 June 2014 13:35:24 UTC+2, Jonathan Guinet wrote: Hi, Do you use CC algorithm throw Segmentation application ? is the stitching option disabled ? (-mode.vector.stitch ) you should activate it Jonathan 2014-06-06 8:23 GMT+02:00 Andy <[email protected]<UrlBlockedError.aspx>>: Hi, I am using the CC algorithm of the otb library in a python script. The input raster has a 11639 x 10948 Pixel extend and 4 bands. The result shows a pattern of equally distributed horizontal lines which split polygons. What is the cause for that? Is it just a matter of the extend? I attached a screenshot which visualizes the problem. Any help is appreciated. Regards -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to [email protected]<UrlBlockedError.aspx> To unsubscribe from this group, send email to http://groups.google.com/group/otb-users?hl=en<...@<wbr>googlegroups.com</a><br> For%20more%20options,%20visit%20this%20group%20at<br> <a%20href=> --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to https://groups.google.com/d/optout<...@<wbr>googlegroups.com</a>.<br> For%20more%20options,%20visit%20<a%20href=>. -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/otb-users?hl=en --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. For more options, visit https://groups.google.com/d/optout. -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/otb-users?hl=en --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
