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prapi::texture::EdgeThinner Class Reference

#include <EdgeDetector.h>

Inheritance diagram for prapi::texture::EdgeThinner:

List of all members.

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Detailed Description

The EdgeThinner class is an image transform that makes thin edges.

A non-maximum suppression algorithm is used that looks for edge pixels. Once it finds one, it tries to find a stronger one in the direction of the edge gradient at the pixel. If a larger gradient magnitude value is found within the given radius, the edge pixel is set to zero.

Public Methods
	EdgeThinner (unsigned int radius)
	Create a new EdgeThinner that uses the given radius for non-maximum suppression.
util::Matrix< double >	getTransformedImage (const util::Matrix< graphics::Point< double > > &gradients) throw (ImageTransformException&)
Static Public Methods
util::Matrix< double >	suppressNonMaxima (const util::Matrix< graphics::Point< double > > &gradients, unsigned int radius)
	Suppress non-maximum gradien values.

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Member Function Documentation

util::Matrix<double> prapi::texture::EdgeThinner::suppressNonMaxima (  const util::Matrix< graphics::Point< double > > &    gradients, unsigned int    radius )  [static]

Suppress non-maximum gradien values. Gradient angles must be in the range [0,2*M_PI). Otherwise the behavior is undefined. Parameters: gradients  gradient angles and magnitudes radius  the search radius

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

• EdgeDetector.h

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Documentation generated on 11.09.2003 with Doxygen.
The documentation is copyrighted material.
Copyright © Topi Mäenpää 2003. All rights reserved.