NDVI Time Series applications
This module contains two applications for NDVI time series processing.
Dependencies
- The OTB library
- The TimeSeriesUtils remote module for OTB
- The TemporalSmoothing remote module for OTB
- The TemporalGapFilling remote module for OTB
How to build it
The module can be built like any other otb remote module. You can build it either from within OTB's sources or outside it.
TimeSeriesIndexTrend application
Description
This application computes the trend of a given time series index (e.g. NDVI). The implemented pipeline is described in Leroux et al.
How to use it
TimeSeriesIndexTrend is an OTBApplication.
This is the TimeSeriesIndexTrend (TimeSeriesIndexTrend) application, version 6.4.0
Compute the trend of the vegetation index time series
Parameters:
MISSING -ndvits <string list> Input NDVI time series images (mandatory)
MISSING -ndvidates <string> Input NDVI time series dates ASCII file (Must be YYYYMMDD format) (mandatory)
-rainfts <string list> Input rainfall time series images (optional, off by default)
-rainfdates <string> Input rainfall time series dates ASCII file (Must be YYYYMMDD format) (optional, off by default)
-ndvi <group> NDVI Time series
-ndvi.reduce <string> Method to reduce time series [cumul/max/amplitude] (mandatory, default value is cumul)
-ndvi.reduce.cumul.day1 <int32> Day 1 (mandatory, default value is 1)
-ndvi.reduce.cumul.day2 <int32> Day 2 (mandatory, default value is 31)
-ndvi.reduce.cumul.month1 <int32> Month 1 (mandatory, default value is 7)
-ndvi.reduce.cumul.month2 <int32> Month 2 (mandatory, default value is 10)
-ndvitrend <string> [pixel] Output image for NDVI trend (Contains [slope, pvalue, correlation]) [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is float) (optional, off by default)
-ndvilabel <string> [pixel] Output image for NDVI label [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is uint8) (optional, off by default)
-rain <group> Rainfall Time series
-rain.reduce <string> Method to reduce time series [cumul] (mandatory, default value is cumul)
-rain.reduce.cumul.day1 <int32> Day 1 (optional, on by default, default value is 1)
-rain.reduce.cumul.day2 <int32> Day 2 (optional, on by default, default value is 31)
-rain.reduce.cumul.month1 <int32> Month 1 (optional, on by default, default value is 6)
-rain.reduce.cumul.month2 <int32> Month 2 (optional, on by default, default value is 10)
-residues <string> [pixel] Output image for NDVI residues [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is float) (optional, off by default)
-restrend <string> [pixel] Output image for NDVI residues trend [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is float) (optional, off by default)
-reslabel <string> [pixel] Output image for NDVI residues trend labels [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is uint8) (optional, off by default)
-factorslabel <string> [pixel] Output image for factors labels [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is uint8) (optional, off by default)
-ndvicumul <string> [pixel] Output image for ndvi year cumul [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is float) (optional, off by default)
-rainfcumul <string> [pixel] Output image for rainfall year cumul [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is float) (optional, off by default)
-pearsoncoef <string> [pixel] Output image for pearson coef [pixel=uint8/uint16/int16/uint32/int32/float/double] (default value is float) (optional, off by default)
-ram <int32> Available RAM (Mb) (optional, off by default, default value is 128)
-inxml <string> Load otb application from xml file (optional, off by default)
-progress <boolean> Report progress
-help <string list> Display long help (empty list), or help for given parameters keys
Use -help param1 [... paramN] to see detailed documentation of those parameters.
Examples:
None
TimeSeriesIndexTrend can be used as any OTB application (gui, command line, python, c++, ...). To add the application in QGIS, just copy the file "TimeSeriesIndexTrend.xml" into the qgis/python/plugins/processing/algs/otb/description/5.0.0/ path.
LandscapeStratification application
Description
This application computes the landscape Stratification from an time series index (e.g. NDVI). The implemented pipeline is described in Bellón et al.
How to use it
LandscapeStratification is an OTBApplication.
This is the LandscapeStratification (LandscapeStratification) application, version 6.2.0
Compute a landscape stratification metric
Parameters:
-progress <boolean> Report progress
-help <string list> Display long help (empty list), or help for given parameters keys
MISSING -mask <string> Mask (mandatory)
-id <string> DatesFile (optional, off by default)
-cw <float> SpectralH (optional, on by default, default value is 0.5)
-sw <float> SpatialH (optional, on by default, default value is 0.5)
MISSING -th <float> Threshold (mandatory)
-tmpdir <string> TempDir (optional, off by default)
MISSING -ndvits <string list> Input NDVI time series images (mandatory)
-cbegin <int32> Component range begin (optional, on by default, default value is 2)
-cend <int32> Component range end (optional, off by default)
MISSING -outvec <string> Output land units map (vector) (mandatory)
-ram <int32> Available RAM (Mb) (optional, off by default, default value is 128)
-inxml <string> Load otb application from xml file (optional, off by default)
Use -help param1 [... paramN] to see detailed documentation of those parameters.LandscapeStratification can be used as any OTB application (gui, command line, python, c++, ...). To add the application in QGIS, just copy the file "LandscapeStratification.xml" into the qgis/python/plugins/processing/algs/otb/description/5.0.0/ path.
License
Please see the license for legal issues on the use of the software (GNU Affero General Public License v3.0).
Contact
Rémi Cresson (IRSTEA)