Optional Orfeo Toolbox support¶
Orfeo Toolbox provides simple to advanced algorithms for processing imagery available from remote sensors. The optional Orfeo Toolbox support is available since ZOO-Project 1.5. It allows to execute the OTB Applications directly as ZOO WPS Services thanks to a ZOO-Kernel specific internal mechanism which is detailed in this section.
Installation and configuration¶
Follow the step described bellow in order to activate the ZOO-Project optional Orfeo Toolbox support.
These installation steps were successfully tested on Ubuntu 14.4 LTS
For OTB and ITK, the CMAKE_C_FLAGS and CMAKE_CXX_FLAGS must first be set to
Download lastest ZOO-Kernel code from SVN.
svn checkout http://svn.zoo-project.org/svn/trunk/zoo-kernel zoo-kernel
Then compile ZOO-Kernel using the needed configuration options as shown bellow:
cd zoo-kernel autoconf ./configure --with-otb=/usr/local --with-itk=/usr/local --with-itk-version=4.7 make cp zoo_loader.cgi /usr/lib/cgi-bin
Main configuration file¶
Add the following content to your
Services configuration file¶
The build of the otb2zcfg utility is required to activate the available OTB Applications as WPS services. This can be done using the following command:
mkdir build cd build ccmake .. make
Run the following command to generate all the needed zcfg files for the available OTB Application:
mkdir zcfgs cd zcfgs export ITK_AUTOLOAD_PATH=/your/path/to/otb/applications ../build/otb2zcfg mkdir /location/to/your/cgi-bin/OTB cp *zcfg /location/to/your/cgi-bin/OTB
Once done, OTB Applications should be listed as available WPS Services when runing a GetCapabilities request
Each OTB Service can then be described individually using the DescribeProcess request, as for example:
Here is an example request executing the OTB.BandMath Application with the OTB Cookbook sample data as input
The usual ZOO GetStatus requests also work when using the OTB Applications as WPS Services.