Difference between revisions of "Function:Subtract"

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(Created page with "__NOTOC__ Subtracts pixel values of second image from the first image ===Function=== {| |style="font-size:150%;"| <syntaxhighlight lang="cpp"> CuviStatus subtract(CuviImage* s...")
 
 
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__NOTOC__
__NOTOC__
Subtracts pixel values of second image from the first image
Subtracts pixel values of second image from the first image
===Function===
====Function====
{|
{|
|style="font-size:150%;"|
|style="font-size:100%;"|
<syntaxhighlight lang="cpp">
<syntaxhighlight lang="cpp">
CuviStatus subtract(CuviImage* srcImage1,
CuviStatus subtract(const CuviImage& src1,
                     CuviImage* srcImage2,
                     const CuviImage& src2,
                     CuviImage* dstImage,
                     CuviImage& dst,
                     CuviStream* stream = NULL);
                     const CuviStream& stream = CuviStream());
</syntaxhighlight>
</syntaxhighlight>
|}
|}
===Parameters===


====Parameters====
{|
|style="font-size:75%;"|
{|class="wikitable"
{|class="wikitable"
|-
|-
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! Description
! Description
|-
|-
| srcImage1
| src1
| CuviImage*
| const CuviImage&
| First Image
| First Image
|-
|-
| srcImage2
| src2
| CuviImage*
| const CuviImage&
| Second Image
| Second Image
|-
|-
| dstImage
| dst
| CuviImage*
| CuviImage&
| Resultant Image
| Resultant Image
|-
|-
| stream  
| stream  
| CuviStream*
| const CuviStream&
| GPU stream ID for execution
| GPU stream ID for execution
 
|}
|}
|}


===Image Type Support===
====Image Type Support====
 
{|
|style="font-size:75%;"|
{| class="wikitable"
{| class="wikitable"
|-
|-
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| 32fC3
| 32fC3
| 32fC3
| 32fC3
|}
|}
|}


====Sample====
[[File:Addin1.jpg|none|frame|First Image]]
<br/>
[[File:Addin2.jpg|none|frame|Second Image]]
<br/>
[[File:SubOut.jpg|none|frame|Result]]
<br/>


 
====Example====
===Example===
{|
{|
|style="font-size:150%;"|
|style="font-size:100%;"|
<syntaxhighlight lang="cpp">
<syntaxhighlight lang="cpp">


CuviImage* gimg1 = new CuviImage(size,img1->depth,img1->nChannels);
CuviImage gimg1 = cuvi::io::loadImage(path);
CuviImage* gimg2 = new CuviImage(size,img2->depth,img2->nChannels);
CuviImage gimg2 = cuvi::io::loadImage(path);
CuviImage* gout = new CuviImage(size,img2->depth,img2->nChannels);
CuviImage gout;
 
//Upload input data
gimg1->upload(img1->imageData,img1->widthStep);
gimg2->upload(img2->imageData,img2->widthStep);


//Divide
//Subtract two images
cuvi::arithmeticLogical::subtract(gimg1,gimg2,gout);
cuvi::arithmeticLogical::subtract(gimg1,gimg2,gout);


</syntaxhighlight>
</syntaxhighlight>
|}
|}

Latest revision as of 20:30, 18 October 2022

Subtracts pixel values of second image from the first image

Function

CuviStatus subtract(const CuviImage& src1,
                    const CuviImage& src2,
                    CuviImage& dst,
                    const CuviStream& stream = CuviStream());

Parameters

Name Type Description
src1 const CuviImage& First Image
src2 const CuviImage& Second Image
dst CuviImage& Resultant Image
stream const CuviStream& GPU stream ID for execution

Image Type Support

Input 1 Input 2 Output
8uC1 8uC1 8uC1
8uC3 8uC3 8uC3
16uC1 16uC1 16uC1
16uC3 16uC3 16uC3
32fC1 32fC1 32fC1
32fC3 32fC3 32fC3

Sample

Error creating thumbnail: Unable to save thumbnail to destination
First Image


Error creating thumbnail: Unable to save thumbnail to destination
Second Image


Error creating thumbnail: Unable to save thumbnail to destination
Result


Example

CuviImage gimg1 = cuvi::io::loadImage(path);
CuviImage gimg2 = cuvi::io::loadImage(path);
CuviImage gout;

//Subtract two images
cuvi::arithmeticLogical::subtract(gimg1,gimg2,gout);
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