Difference between revisions of "Function:MinMax"

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<syntaxhighlight lang="cpp">
<syntaxhighlight lang="cpp">
CuviStatus minMax(CuviImage* image,
CuviStatus minMax(const CuviImage& src,
                   Cuvi64f* minValue,
                   CuviScalar& minValue,
                   Cuvi64f* maxValue,
                   CuviScalar& maxValue,
                   CuviStream* stream = NULL);
                   const CuviStream& stream = CuviStream());
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! Description
! Description
|-
|-
| image
| src
| CuviImage*
| const CuviImage&
| Input Image
| Input Image
|-
|-
| minValue
| minValue
| Cuvi64f*
| CuviScalar&
| Minimum pixel value in the image
| Minimum pixel value(s) in the image
|-
|-
| maxValue
| maxValue
| Cuvi64f*
| CuviScalar&
| Maximum pixel value in the image
| Maximum pixel value(s) in the image
|-
|-
| stream  
| stream  
| CuviStream*
| const CuviStream&
| GPU stream ID for execution
| GPU stream ID for execution


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|-
|-
| 8uC1
| 8uC1
| 2 x Cuvi64f single value
| 2 x CuviScalar
|-
|-
| 8uC3
| 8uC3
| 2 x Cuvi64f three values
| 2 x CuviScalar
|-
| 16uC1
| 2 x CuviScalar
|-
| 16uC3
| 2 x CuviScalar
|-
| 32fC1
| 2 x CuviScalar
|-
| 32fC3
| 2 x CuviScalar
|}
|}


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CuviImage* gimg = new CuviImage(size, depth, nChannels);
CuviImage gimg = cuvi::io::loadImage(path);
 
Cuvi64f* max = new Cuvi64f[nChannels];
Cuvi64f* min = new Cuvi64f[nChannels];
 
//Upload input data
gimg->upload(hostImg->imageData, hostImg->widthStep);


CuviScalar min, max;


//Returns minimum and maximum pixel value
//Returns minimum and maximum pixel value(s)
cuvi::arithmeticLogical::minMax(gimg, min, max);
cuvi::imageStatistics::minMax(gimg, min, max);


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Latest revision as of 11:27, 13 June 2014

Computes the minimum and maximum pixel values in the image

Function

CuviStatus minMax(const CuviImage& src,
                  CuviScalar& minValue,
                  CuviScalar& maxValue,
                  const CuviStream& stream = CuviStream());

Parameters

Name Type Description
src const CuviImage& Input Image
minValue CuviScalar& Minimum pixel value(s) in the image
maxValue CuviScalar& Maximum pixel value(s) in the image
stream const CuviStream& GPU stream ID for execution

Image Type Support

Input Output
8uC1 2 x CuviScalar
8uC3 2 x CuviScalar
16uC1 2 x CuviScalar
16uC3 2 x CuviScalar
32fC1 2 x CuviScalar
32fC3 2 x CuviScalar

Sample

Minmax.PNG


Example

CuviImage gimg = cuvi::io::loadImage(path);

CuviScalar min, max;

//Returns minimum and maximum pixel value(s)	
cuvi::imageStatistics::minMax(gimg, min, max);
Retrieved from "https://wiki.cuvilib.com/index.php?title=Function:MinMax&oldid=820"