Questions tagged [orfeo-toolbox]

A free and open source remote sensing software package.

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Running OTB Random Forest Classification

I am having trouble processing a satellite image using the RF (Random Forest) classification, that is a machine learning algorithm in the Orfeo Toolbox of QGis 2.18.1. When I run the Tool, the ...
4
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0answers
2k views

Classify image using segmentation analysis using QGIS and OrfeoToolbox

I am working on a project where we have made a RGB orthomosaic using a drone which I want to classify using QGIS. I am not a fan of unsupervised classification, and I started exploring the ...
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0answers
414 views

Orfeo toolbox in Qgis fails to execute

I installed Orfeo using OSGeo4W and have set paths in QGIS (Wein) at Processing -> Options & Configuration -> Providers -> Orfeo Toolbox to: Applications: C:\OSGeo4W\apps\orfeotoolbox\...
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0answers
61 views

Stand-alone PyQGIS (QGIS 3.13) scripts with OSGeo4W and the Orfeo toolbox (OTB 7.1.0) seem to be mutually exclusive

I am changing my python environment from working with ArcGis and Arcpy to working with QGIS and PyQgis. And I also want to use the machinelearning possibilities from the orfeo toolbox. In doing so I ...
3
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1answer
168 views

Orfeo mshift segmentation asks for condition

I'm trying to run a segmentation using the mean shift. I leave all the parameters as default, but when I run it, it says "Wrong or missing parameter value: Condition". Condition is not a parameter for ...
3
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0answers
698 views

OTB-QGIS plugin does not appear in QGIS 3.2 after manual installation

I have followed this instruction to connect the qgis-otb-plugin manually. But after completing all the steps, OTB does not show under Settings > Options > Providers. I cloned the qgis-otb-plugin ...
3
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0answers
136 views

QGIS Orfeo Toolbox: Smoothing tools generate unwanted black border on a hillshade raster

I'm using the Smoothing (gaussian) and Smoothing (mean) tools in the QGIS Orfeo toolbox to blur a hillshade raster I've generated. However, they both come out with a thick black border at the edge of ...
2
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0answers
166 views

Orfeo Toolbox is installed but not visible in Processing Toolbox

maybe someone had the same problem and solved it already: I did an "Advanced Install" setup of OSGeo4W enabling otb-bin, then started QGIS 2.18.15 and entered the following correct paths (my computer ...
2
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0answers
253 views

Installing Orfeo tool box with QGIS?

I have installed QGIS and OTB according to instructions (Win 8, 64 bit) . I have set the paths in the "Orfeo Tool Box menu". See attached. I get a message "Wrong value for parameter "Msys value". I ...
2
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0answers
610 views

How to export a training shapefile as an XML spectral signature file via QGIS?

I recently used the answer from Using Orfeo Toolbox object based classification in QGIS tutorial/workflow? to perform an object base segmentation on a SPOT image I acquired a while ago. I tried both ...
2
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0answers
404 views

Right Orfeo Toolbox Segmentation input

I made this tutorial. I used Landsat 8 bands (1-7), which I atmospheric corrected with DOS and converted to 8-bit. After that I layer stacked the pre processed band (1-7), clipped a little part with a ...
1
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0answers
80 views

Using Orfeo Toolbox in Google Colab

Orfeo Toolbox (OTB) has a tool that I'd like to use for some image processing as part of a longer Python workflow that I'm executing in Google Colab. While OTB can be called via Python if the whole ...
1
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0answers
50 views

Orfeo Tool Box PCA - explained variance

How can I export/calculate the accumulated explained variance per principal component from a PCA done with the Orfeo Tool box in QGIS?
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0answers
47 views

Orfeo Toolbox is not activating

I am in desperate need of help. I've tried the answers to similar questions and nothing is working. Orfeo Toolbox appears as activated in Processing options but is not appearing in the toolbox. I ...
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0answers
51 views

Orfeo rescale problem?

I have downloaded a Sentinel image, what I histogram matched first with the following Orfeo codes (a cut the low and high 2 percentiles): # Import the otb applications package import otbApplication # ...
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0answers
94 views

orfeo toolbox in Qgis 2.18.13 windows 7 32 bit

I installed the orfeo toolbox in Qgis but got this error.
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0answers
128 views

QGIS OBIA join attributes by location xml file

I was trying to follow this tutorial for object base classification However, when I reach this step, it becomes confusing. I run the join attributes by location just as it said, and the output are ....
1
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0answers
826 views

Atmospheric correction for RapideEye without atmospheric parameters

I'd like to perform an atmospheric correction of my RapidEye images but metadata do no include atmospheric parameters required to use the 6s algo implemented in the Orfeo ToolBox. Is there a solution ...
0
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0answers
19 views

How to drawing ROC curve in Orfeo Toolbox

I would to like to known how i plot the roc curve after training the machine learning model in orfeo toolbox/monteverdi GUI. I have the matrix error of the model. I used Large scale mean shift ...
0
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1answer
51 views

Orfeo Toolbox error

I'm using segmentation (mean-shift) tool in Orfeo Toolbox with QGIS I used a subset of pansharpened image from Worldview3 after orthorectification. But, I got same error whenever I tried: 2020-07-02 ...
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33 views

QGIS 3, OrfeoToolbox 7, Dynamic Library Error

I installed QGIS using KyingChaos’ OSX build and installed OTB following guidance on the GitHub page. When I run the kmeans classifier I get the following error: Algorithm ‘KMeansClassification’ ...
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29 views

How does the runtime of Haralick texture generation scale with the number of bins/gray levels? (Orfeo)

I'm trying to generate some Haralick textures of various LiDAR-derived elevation models (digital height models and digital surface models). Because the height models (DHMs) have a lower bound of 0 and ...
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23 views

How to apply thresolding filter in qgis?

i am using google earth image for extracting building footprint. For that result, I have done edge extraction (orfeo toolbox) and after that I need to apply thresolding filter as per workflow stated ...
0
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0answers
148 views

Problem installing OTB-contrib on Ubuntu Xenial

I am trying to install OTB-contrib package in Ubuntu Xenial. I did the following: Download it and move it to /opt Run the script Added the following paths to my .bashrc file: export PATH="$PATH:/opt/...
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313 views

ORFEO vs ERDAS: How to extract a good DSM with ORFEO

I'm trying to use ORFEO to check is it suitable to replace ERDAS to perform DSM extraction from stereo pairs. First thing, I can't use ORFEO for complete Pleiades images, it always crashes (my machine ...
0
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0answers
470 views

OBIA following connected components segmentation in Monteverdi2

New to Monteverdi2 and OTB. I just finished a connected components segmentation using the Segmentation module and the large-scale vector output mode for large datasets. How can I filter the output (...