Difference between revisions of "Function:Max"

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__NOTOC__
__NOTOC__
Computes the maximum of image pixel values
Computes the maximum of image pixel values. Each channel is processed individually.
===Function===
====Function====
{|
{|
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<syntaxhighlight lang="cpp">
<syntaxhighlight lang="cpp">
CuviStatus max(CuviImage* image,
CuviStatus max(const CuviImage& src,
               Cuvi64f* maxValue,
               CuviScalar& maxValue,
               CuviStream* stream = NULL);
               const CuviStream& stream = CuviStream());


</syntaxhighlight>
</syntaxhighlight>
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===Parameters===


====Parameters====
{|
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! Description
! Description
|-
|-
| image
| src
| CuviImage*
| const CuviImage&
| Input Image
| Input 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
 
|}
|}
|}


===Image Type Support===
====Image Type Support====
 
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|-
|-
| 8uC1
| 8uC1
| Cuvi64f single value
| CuviScalar
|-
|-
| 8uC3
| 8uC3
| Cuvi64f three values
| CuviScalar
|-
| 16uC1
| CuviScalar
|-
| 16uC3
| CuviScalar
|-
| 32fC1
| CuviScalar
|-
| 32fC3
| CuviScalar
|}
|}
|}


===Sample===
====Sample====
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{|
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====Example====
===Example===
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<syntaxhighlight lang="cpp">




CuviImage* gimg = new CuviImage(size, depth, nChannels);
CuviImage gimg = cuvi::io::loadImage(path);
 
Cuvi64f* max = new Cuvi64f[nChannels];


//Upload input data
CuviScalar maxValues;
gimg->upload(hostImg->imageData, hostImg->widthStep);




//Returns maximum pixel value
//Returns maximum pixel value
cuvi::arithmeticLogical::max(gimg, &max);
cuvi::imageStatistics::max(gimg, maxValues);


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Latest revision as of 18:30, 19 October 2022

Computes the maximum of image pixel values. Each channel is processed individually.

Function

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

Parameters

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

Image Type Support

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

Sample

Error creating thumbnail: Unable to save thumbnail to destination

Example

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

CuviScalar maxValues;


//Returns maximum pixel value	
cuvi::imageStatistics::max(gimg, maxValues);
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