Questions tagged [otb-applications]
OTB-Applications is a package from the Orfeo ToolBox (OTB)
34
questions
2
votes
0
answers
46
views
Properly configure image segmentation on QGIS (Segmentation / MeanShift)
I'm trying to perform remote sensing on georeferenced historical satellite images (taken from Google Earth), using the segmentation algorithm from OTB.
In the parameters of the Segmentation algorithm, ...
- 387
0
votes
0
answers
22
views
QGIS - OTB Segmentation - Remove artifacts
I'm using the algorithms from OTB, to segment and perfom remote sensing on mangrove areas.
The idea here is to delineate mangrove cover from different satelite images and, later, compare mangrove ...
- 387
0
votes
1
answer
368
views
Can't enable OTB provider in QGIS 3.22.11?
How can I activate Orfeo ToolBox in QGIS 3.22.11 (LTR)?
I enabled the plugin and checked the provider from processing but I don't find the check button in OTB provider :
Are there any suggestions to ...
- 69
0
votes
0
answers
20
views
Linux QGIS 3.20 cannot get Orfeo Tooolbox to work
Running QGIS 3.20 Odense on Linux Mint 20.1 Ulyssa and trying to get OTB functions available. Either throws "wrong value for parameter "OTB folder":" message or QGIS crashes ...
- 579
0
votes
1
answer
52
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Why does the "OTB - BundleToPerfectSensor" use the height value?
Why does the "BundleToPerfectSensor" use the height value?
QGIS wants to use the OTB plug-in to do Pansharpening.
I wonder why the height value is needed to convert the MS image to high ...
- 467
1
vote
0
answers
86
views
Fatal error using orfeo toolbox (otb 8.0.0) algorithm Computeconfusionmatrix in QGIS 3.22
I tried to compute a confusion matrix of a raster classification with otb's Computeconfusionmatrix using vector data (polygons) as reference input. When I run the same algorithm in mapla (otb ...
- 11
1
vote
1
answer
442
views
Installing and using Orfeo Toolbox (OTB) through Python
Using Python v.3.6.8 through Jupyter notebook (in Windows 10), how can I set and use OTB (v.7.3.0)?
I followed the steps described in the official cookbook and other tutorials, however, the result is:
...
- 89
0
votes
1
answer
106
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Subsetting mutliband raster in QGIS using OTB BandMathX
I am attempting to do a simple extraction of a multiband (360 bands) raster in QGIS. I have come to the conclusion I need to use BandMathX from OTB, since I am interested in generating a new multiband ...
2
votes
0
answers
71
views
What causes error: Spatial reference of input image and samples don't match
I checked that the CRS is the same. I want to train the classifier in OTB to recognize "non-vegetation" and "vegetation" on an orthomosaic. I created a polygon layer with the two ...
- 21
1
vote
1
answer
110
views
OTB ImageClassifier -The following layers were not correctly generated
After running the OTB ImageClassifier, I get always the error message:
The following layers were not correctly generated.
What could be the reason for this?
- 101
0
votes
1
answer
104
views
Same confusion matrix depiste hyperparameter tuning using TrainImageClassifier in OTB
I am trying to run a land use land cover classification using TrainImageClassifier in OTB. Here are the settings I used :
The problem is that no matter how much I tweak the hyperparameters of any of ...
- 411
3
votes
0
answers
243
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 ...
- 31
1
vote
2
answers
445
views
Train Images Classifier - OTB Spatial reference of input and samples don't match
I am running the Train Images Classifier on OTB 7.1.0. I used QGIS to upload a raster images and then created a vector polygon file for my classes. I ensured that both the raster and vector files are ...
- 1,250
2
votes
0
answers
329
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 ...
- 529
2
votes
2
answers
1k
views
Object-based Classification in Orfeo ToolBox
I have a multispectral camera with 5 bands (r, g, b, red edge, NIR) and I would like to classify plants object based with Orfeo ToolBox. I am flying with the drone close to the plants and have an ...
- 101
2
votes
0
answers
87
views
Segmentation in OTB gives blank rectangle as output
I am trying to segment a raster image to get a vector output. I am using OTB 6.6.1 in QGIS 3.4. In the segmentation window, I selected the input raster which is a 3 band (true colour) sentinel 2 image ...
3
votes
1
answer
568
views
ImportError when trying to load otb (orfeo-toolbox) into QGIS Python Console
I would like to use the orfeo-toolbox via the QGIS Python Console, however, I don't seem to be able to import the otbApplication. I keep getting the following error:
import otbApplication
Traceback (...
- 81
1
vote
0
answers
43
views
Installerv otb 6.6.1 under QGIS 2.18.24 in Windows 7
I had installed QGIS 2.18.24 on OSGeo4W, then the OTB stand-alone binary file. In QGIS, I manually entered the directory of OTB Applications folder
C:\Program Files\QGIS 2.18\apps\OTB-6.6.1-win32\lib\...
- 11
0
votes
1
answer
309
views
How to Classify With Multiple Ancillary Datasets using QGIS?
I've tried using the classifiers in ArcMap which only supports one ancillary dataset and I tried using Orfeo in QGIS 2.18, though the Orfeo Image Classification tool does not accept any ancillary ...
- 31
0
votes
0
answers
333
views
PyQGIS 3.4: otb:unsupervisedkmeansimageclassification -> AttributeError: module 'processing' has no attribute 'runalg'
I'm trying to classify a raster with PyQGIS:
import processing
processing.runalg("otb:unsupervisedkmeansimageclassification","FalseColor.tif",128,None,100,3,1000,0.95,"class.tif",None)
The python ...
- 91
1
vote
0
answers
96
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?
- 41
3
votes
0
answers
886
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 ...
- 31
1
vote
0
answers
72
views
orfeo tool box Optical calibration
I am trying to customize Optical calibration module for hyperion sensor. I am not able to find RSR foramt .can any one suggest me what is the format of Relative Spectral Response File which is on of ...
- 321
1
vote
1
answer
559
views
Masking cloud pixels for NDVI in QGIS
I'm using QGIS to analyze some image of the NOLA area pre- and post-hurricanes. I'd like to calculate NDVI and a couple other indices for the images, but I want to exclude pixels with clouds in them ...
- 13
3
votes
0
answers
843
views
Is Orfeo Toolbox OTB no longer available through OSGeo4W?
When I run the current OSGeo4W installer on Windows 10, 64 bit, no OTB packages are available:
The OTB binary package status page still lists OSGeo4W as a source for OTB.
~~Does anyone know what is ...
- 289
1
vote
0
answers
138
views
Can't run Haralick texture process on Orfeo ToolBox on QGIS
I have tried to run Haralick texture extraction on Orfeo, and this error is returned:
Algoritmo Haralick Texture Extraction comenzando...
> C:\OTB\OTB\bin\otbcli_HaralickTextureExtraction
> -...
- 11
1
vote
0
answers
122
views
Problem installing OTB for QGIS 2.8.15 in ubuntu
I'm experiencing a problem in installing OTB for QGIS 2.8.15 in my ubuntu 16.04.
I'm following the instructions in
https://wiki.orfeo-toolbox.org/index.php/QGIS_access_to_OTB_applications
but when I ...
- 1,037
0
votes
1
answer
155
views
Using OTB-Mosaic plugin in QGIS?
I want to use the remicres/otb-mosaic plugin (https://github.com/remicres/otb-mosaic) in QGIS.
Fig. 1 is the usage introduction given on the webpage.
However I cannot find the function in QGIS ...
- 121
2
votes
2
answers
213
views
Algorithm split image doesn't show up anymore in QGIS 2.18.14
I developed a plugin for qgis in python language with a code line to execute split image algorithm from orfeo toolbox. When I update from QGIS 2.18.9 to 2.18.14 the split image algorithm doesn't show ...
- 21
0
votes
1
answer
99
views
Applying OTB mean shift smoothing to a folder of rasters using Python 2
I am very new to Python, and am having trouble coming up with a loop script that will allow me to apply a smoothing process to a folder of rasters. This is the script I am using for a single file ...
- 3
1
vote
0
answers
208
views
Orfeo Tool Box installation-QGIS_2.18.10-Windows 10-64Bits [duplicate]
I installed QGIS 2.18.10 and then osgeo4w as you suggested it. I went to the Processing Provider options and entered the paths as you described it. But I do not still have OTB in my processing toolbox....
- 11
2
votes
0
answers
324
views
OTB TrainImageClassifiers in QGIS
I have installed the OTB 5.10.1 version and when i want to use train images classifier for the random forest it doesn't create any output model file. and the library give me this error message:
ERROR:...
- 21
9
votes
3
answers
13k
views
How to configure Orfeo toolbox in QGIS 2.18 on Windows 7 32-Bit?
I had installed QGIS 2.18.3 using OSGeo4W and then the OTB standalone binary.
In QGIS, I had manually entered the directory of the
OTB applications folder (C:\Program Files\QGIS 2.18\apps\OTB-5.10.0-...
- 355
3
votes
1
answer
778
views
Point otbApplication for python to the relevant OTB DLL's
I installed the latest OTB and Monteverdi on a Win 7 machine. Via osgeo4w I downloaded otbApplication for python, without any dependencies.
Python, gdal, numpy scipy and so forth was custom build ...
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