stira::imageanalysis::CannyEdgeDetector Class Reference

Canny edge detector inspired on http://en.wikipedia.org/wiki/Canny_edge_detector ftp://figment.csee.usf.edu/pub/Edge_Comparison/source_code http://www.pages.drexel.edu/~nk752/cannyTut2.html http://www.cvmt.dk/education/teaching/f09/VGIS8/AIP/canny_09gr820.pdf. More...

#include <CannyEdgeDetector.h>

Public Member Functions
	CannyEdgeDetector ()
	Constructor.
	~CannyEdgeDetector ()
	Destructor.

Static Public Member Functions
static ArrayGrid< bool > *	Run (ArrayGrid< double > *pGridIn, double sigmaSmooth, double lowerThreshold, double upperThreshold)
	input data More...

Detailed Description

Canny edge detector inspired on http://en.wikipedia.org/wiki/Canny_edge_detector ftp://figment.csee.usf.edu/pub/Edge_Comparison/source_code http://www.pages.drexel.edu/~nk752/cannyTut2.html http://www.cvmt.dk/education/teaching/f09/VGIS8/AIP/canny_09gr820.pdf.

Member Function Documentation

ArrayGrid< bool > * stira::imageanalysis::CannyEdgeDetector::Run ( ArrayGrid< double > *  pGridIn, double  sigmaSmooth, double  lowerThreshold, double  upperThreshold  )

static

input data

Parameters

pGridIn	input data
sigmaSmooth	sigma for the Gaussian smoothing applied as preprocessing for edge detection
lowerThreshold	low threshold for edge strength in hysteresis test
upperThreshold	high threshold for edge strength in hysteresis test

Returns

grid with the edges

References stira::imagedata::ArrayGrid< T >::Clone(), stira::filter::NonSeparableFilter::DetermineLocalMagnitudeAndOrientation(), stira::fouriertools::FFT::GaussConvolve(), and stira::imagetools::ImageIO::WritePGM().

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The documentation for this class was generated from the following files:

• imageanalysis/imageanalysis/CannyEdgeDetector.h
• imageanalysis/imageanalysis/CannyEdgeDetector.cpp