Difference between revisions of "Function:Sum"

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__NOTOC__
__NOTOC__
Computes the sum of all pixel values in the image
Computes the sum of all pixel values in the image
===Function===
====Function====
{|
{|
|style="font-size:150%;"|
|style="font-size:100%;"|
<syntaxhighlight lang="cpp">
<syntaxhighlight lang="cpp">
CuviStatus sum(CuviImage* image,
CuviStatus sum(const CuviImage& src,
               Cuvi64f* sum,
               Cuvi64f* sum,
               CuviStream* stream = NULL);
               const CuviStream& stream = CuviStream());
</syntaxhighlight>
</syntaxhighlight>
|}
|}
===Parameters===
===Parameters===
 
{|
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{|class="wikitable"
{|class="wikitable"
|-
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! Description
! Description
|-
|-
| image
| src
| CuviImage*
| const CuviImage&
| Input Image
| Input Image
|-
|-
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|-
|-
| 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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{| class="wikitable"
{| class="wikitable"
|-
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| 8uC3
| 8uC3
| Cuvi64f three values
| Cuvi64f three values
|}
|}
|}


===Sample===
====Sample====
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{|
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====Example====
===Example===
{|
{|
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|style="font-size:100%;"|
<syntaxhighlight lang="cpp">
<syntaxhighlight lang="cpp">




CuviImage* gimg = new CuviImage(size, depth, nChannels);
CuviImage gimg = cuvi::io::loadImage(path);
 
Cuvi64f* sum = 0;


//Upload input data
Cuvi64f* sum = new Cuvi64f[gimg.channels()];
gimg->upload(hostImg->imageData, hostImg->widthStep);




//Sum of all pixel values
//Sum of all pixel values
cuvi::arithmeticLogical::sum(gimg, &sum);
cuvi::imageStatistics::sum(gimg, sum);


</syntaxhighlight>
</syntaxhighlight>
|}
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Latest revision as of 10:34, 19 October 2022

Computes the sum of all pixel values in the image

Function

CuviStatus sum(const CuviImage& src,
               Cuvi64f* sum,
               const CuviStream& stream = CuviStream());

Parameters

Name Type Description
src const CuviImage& Input Image
sum Cuvi64f* Sum of all pixel values of the image
stream const CuviStream& GPU stream ID for execution

Image Type Support

Input Output
8uC1 Cuvi64f single value
8uC3 Cuvi64f three values

Sample

Sum.PNG

Example

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

Cuvi64f* sum = new Cuvi64f[gimg.channels()];


//Sum of all pixel values	
cuvi::imageStatistics::sum(gimg, sum);
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