SFS Texture Extraction
Computes Structural Feature Set textures on every pixel of the input image selected channel
Feature Extraction, Textures
Structural Feature Set  are based on the histograms of the pixels in multiple directions of the image. The SFSTextureExtraction application computes the 6 following features: SFS'Length, SFS'Width, SFS'PSI, SFS'W-Mean, SFS'Ratio and SFS'SD (Standard Deviation). The texture indices are computed from the neighborhood of each pixel. It is possible to change the length of the calculation line (spatial threshold), as well as the maximum difference between a pixel of the line and the pixel at the center of the neighborhood (spectral threshold) .
Input Image (in): The input image to compute the features on.
Selected Channel (channel): The selected channel index
Available RAM (Mb) (ram): Available memory for processing (in MB)
Texture feature parameters (parameters): This group of parameters allows one to define SFS texture parameters. The available texture features are SFS'Length, SFS'Width, SFS'PSI, SFS'W-Mean, SFS'Ratio and SFS'SD. They are provided in this exact order in the output image.
Spectral Threshold (parameters.spethre): Spectral Threshold
Spatial Threshold (parameters.spathre): Spatial Threshold
Number of Direction (parameters.nbdir): Number of Direction
Alpha (parameters.alpha): Alpha
Ratio Maximum Consideration Number (parameters.maxcons): Ratio Maximum Consideration Number
Feature Output Image (out): Output image containing the SFS texture features.
Load otb application from xml file (inxml): Load otb application from xml file
Save otb application to xml file (outxml): Save otb application to xml file
 HUANG, Xin, ZHANG, Liangpei, et LI, Pingxiang. Classification and extraction of spatial features in urban areas using high-resolution multispectral imagery. IEEE Geoscience and Remote Sensing Letters, 2007, vol. 4, no 2, p. 260-264.
 otbSFSTexturesImageFilter class
Example of use
otbcli_SFSTextureExtraction -in qb_RoadExtract.tif -channel 1 -parameters.spethre 50.0 -parameters.spathre 100 -out SFSTextures.tif