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FindMinMax< VALUETYPE > Class Template Reference

Find the minimum and maximum pixel value in an image or ROI. More...

#include <vigra/inspectimage.hxx>

List of all members.

Public Types

typedef VALUETYPE argument_type
typedef VALUETYPE result_type
typedef VALUETYPE value_type

Public Member Functions

 FindMinMax ()
void operator() (FindMinMax const &v)
void operator() (RGBValue< VALUETYPE > const &v)
void operator() (argument_type const &v)
void reset ()

Public Attributes

unsigned int count
VALUETYPE max
VALUETYPE min

Detailed Description

template<class VALUETYPE>
class vigra::FindMinMax< VALUETYPE >

Find the minimum and maximum pixel value in an image or ROI.

In addition the size of the ROI is calculated. These functors can also be used in conjunction with ArrayOfRegionStatistics to find the extremes of all regions in a labeled image.

Traits defined:

FunctorTraits::isUnaryAnalyser is true (VigraTrueType)

Usage:

#include <vigra/inspectimage.hxx>
Namespace: vigra

    vigra::BImage img;

    vigra::FindMinMax<vigra::BImage::PixelType> minmax;   // init functor

    vigra::inspectImage(srcImageRange(img), minmax);

    cout << "Min: " << minmax.min << " Max: " << minmax.max;

Required Interface:

    VALUETYPE v1, v2(v1);

    v1 < v2;
    v1 = v2;

Member Typedef Documentation

typedef VALUETYPE argument_type

the functor's argument type

typedef VALUETYPE result_type

the functor's result type

typedef VALUETYPE value_type
Deprecated:
use argument_type

Constructor & Destructor Documentation

init min and max


Member Function Documentation

void reset ( )

(re-)init functor (clear min, max)

void operator() ( argument_type const &  v)

update min and max

void operator() ( RGBValue< VALUETYPE > const &  v)

update min and max with components of RGBValue<VALUETYPE>

void operator() ( FindMinMax< VALUETYPE > const &  v)

merge two statistics


Member Data Documentation

VALUETYPE min

the current min

VALUETYPE max

the current max

unsigned int count

the number of values processed so far


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

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de)
Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany

html generated using doxygen and Python
vigra 1.7.0 (Thu Aug 25 2011)