Hi, I think you can use otbcli_EdgeExtraction ----------------------------------------------------- This is the EdgeExtraction application, version 4.0.0 Computes edge features on every pixel of the input image selected channel
Complete documentation: http://www.orfeo-toolbox.org/Applications/EdgeExtraction.html Parameters: -progress <boolean> Report progress MISSING -in <string> Input Image (mandatory) -channel <int32> Selected Channel (mandatory, default value is 1) -ram <int32> Available RAM (Mb) (optional, off by default, default value is 122) -filter <string> Edge feature [gradient/sobel/touzi] (mandatory, default value is gradient) -filter.touzi.xradius <int32> The X Radius (mandatory, default value is 1) -filter.touzi.yradius <int32> The Y Radius (mandatory, default value is 1) MISSING -out <string> [pixel] Feature Output Image [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is float) (mandatory) -inxml <string> Load otb application from xml file (optional, off by default) Examples: otbcli_EdgeExtraction -in qb_RoadExtract.tif -channel 1 -out Edges.tif ----------------------------------------------------- and after that threshold using otbcli_BandMath ----------------------------------------------------- This is the BandMath application, version 4.0.0 Perform a mathematical operation on monoband images Complete documentation: http://www.orfeo-toolbox.org/Applications/BandMath.html Parameters: -progress <boolean> Report progress MISSING -il <string list> Input image list (mandatory) MISSING -out <string> [pixel] Output Image [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is float) (mandatory) -ram <int32> Available RAM (Mb) (optional, off by default, default value is 122) MISSING -exp <string> Expression (mandatory) -inxml <string> Load otb application from xml file (optional, off by default) Examples: otbcli_BandMath -il verySmallFSATSW_r.tif verySmallFSATSW_nir.tif verySmallFSATSW.tif -out apTvUtBandMathOutput.tif -exp "cos(im1b1)+im2b1*im3b1-im3b2+ndvi(im3b3, im3b4)" ----------------------------------------------------- The expression for the thresholding could be (where X is the value of the threshold): if(im1b1>X,1,0) or depending on the muParser version that you have it can be (im1b1>X)?1:0 Jordi Lucile Vergé <[email protected]> wrote: > > We use Monteverdi to extract automaticaly hedges and forests from RVB > orthophoto. For that we use the "Edge extraction" and "Threshold" functions > into Monteverdi. To apply the process to the whole orthophoto we want to use > the otb's > applications of the OSGeo4W shell. > > Unfortunately, we don't find the applications (otbcli or otbgui) > corresponding to the functions "Edge extraction" and "Threshold" of > Monteverdi. > > Please could you tell us if these functions exist and if so where could we > find them? > > Thanks a lot. > > -- > -- > 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 > otb-users-/[email protected] > To unsubscribe from this group, send email to > otb-users+unsubscribe-/[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 > otb-users+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/[email protected] > For more options, visit https://groups.google.com/groups/opt_out. -- -- 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/groups/opt_out.
