ajout description

Code/FeatureExtraction/otbRoadExtractionFilter.h

@@ -43,17 +43,17 @@ namespace otb
  * \class RoadExtractionFilter
  * \brief This class performs the extraction of roads from an image.
  * 
- * This composite filter implement a fast and robust road extraction
+ * This composite filter implements a fast and robust road extraction
  * for high resolution satellite images. The algorithm uses all spectral
- * bands based on the spectral angle with a reference pixel. The line 
- * detection done using a Gaussian gradient with a scalar product to find
+ * bands based on the spectral angle with a reference pixel. Then, the line 
+ * detection is done using a Gaussian gradient with a scalar product to find
  * the road directions. Finally, extracted roads are vectorized and 
- * processed to improve the results: remove some occultations and false 
+ * processed to improve the results removing some occultations and false 
  * detections.
  *
- * This filter is fast as the detection typically takes 3 seconds for a 
+ * This filter is fast, as the detection typically takes 3 seconds for a 
  * 1000 \f$ \times \f$ 1000 images with four spectral bands. Results can be
- * used as initialization for more complex algorithms.
+ * used as an initialization for more complex algorithms.
  *
  * \sa SpectralAngleDistanceImageFilter
  * \sa itk::SqrtImageFilter