Difference between revisions of "Function:ChannelMerge"

From CUVI Wiki
(Created page with "__NOTOC__ Merges R, G and B Channel to form a color image ===Function=== {| |style="font-size:150%;"| <syntaxhighlight lang="cpp"> CuviStatus channelMerge(CuviImage* srcRed, ...")
 
 
(6 intermediate revisions by 2 users not shown)
Line 2: Line 2:
Merges R, G and B Channel to form a color image
Merges R, G and B Channel to form a color image


===Function===
====Function====
{|
{|
|style="font-size:150%;"|
|style="font-size:100%;"|
<syntaxhighlight lang="cpp">
<syntaxhighlight lang="cpp">
CuviStatus channelMerge(CuviImage* srcRed,
CuviStatus channelMerge(const CuviImage& red,
                         CuviImage* srcGreen,
                         const CuviImage& green,
                         CuviImage* srcBlue,
                         const CuviImage& blue,
                         CuviImage* dstImage,
                         CuviImage& dst,
                         CuviStream* stream = NULL);
                         const CuviStream& stream = CuviStream());
</syntaxhighlight>
</syntaxhighlight>
|}
|}
===Parameters===


====Parameters====
{|
|style="font-size:75%;"|
{|class="wikitable"
{|class="wikitable"
|-
|-
Line 21: Line 23:
! Description
! Description
|-
|-
| srcRed
| red
| CuviImage*
| const CuviImage&
| Red channel input image
| Red channel input image
|-
|-
| srcGreen
| green
| CuviImage*
| const CuviImage&
| Green channel input image
| Green channel input image
|-
|-
| srcBlue
| blue
| CuviImage*
| const CuviImage&
| Blue channel input image
| Blue channel input image
|-
|-
| dstImage
| dst
| CuviImage*
| const CuviImage&
| 3-channel output Image
| 3-channel output 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"
|-
|-
Line 55: Line 58:
| 16uC1 x 3
| 16uC1 x 3
| 16uC3
| 16uC3
|-
| 32fC1 x 3
| 32fC3
|}
|}
|}


===Sample===
===Sample===
{|
[[File:Splitred.jpg|none|frame|Red Channel]]
|-
<br/>
|[[File:Splitred.jpg|frame|Red Channel]]
[[File:Splitgreen.jpg|none|frame|Green Channel]]
|[[File:Splitgreen.jpg|frame|Green Channel]]
<br/>
|[[File:Splitblue.jpg|frame|Blue Channel]]
[[File:Splitblue.jpg|none|frame|Blue Channel]]
|[[File:Splitin.jpg|frame|Output Image]]
<br/>
|}
[[File:Splitin.jpg|none|frame|Output Image]]
<br/>




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




//Three single channel images
//Three single channel images
CuviImage* gr = new CuviImage(size,r->depth,r->nChannels);
CuviImage gr = cuvi::io::loadImage(path,CUVI_LOAD_IMAGE_GRAYSCALE);
CuviImage* gg = new CuviImage(size,g->depth,g->nChannels);
CuviImage gg = cuvi::io::loadImage(path,CUVI_LOAD_IMAGE_GRAYSCALE);
CuviImage* gb = new CuviImage(size,b->depth,b->nChannels);
CuviImage gb = cuvi::io::loadImage(path,CUVI_LOAD_IMAGE_GRAYSCALE);


//A single color image for storing output
//A single color image for storing output
CuviImage* gout = new CuviImage(size,r->depth,3);
CuviImage gout;
 
//Populate the GPU images with pixel data
gr->upload(r->imageData,r->widthStep,st);
gg->upload(g->imageData,g->widthStep,st);
gb->upload(b->imageData,b->widthStep,st);
 
//Merge R, G and B images into a single colored image
//Merge R, G and B images into a single colored image

Latest revision as of 12:44, 18 October 2022

Merges R, G and B Channel to form a color image

Function

CuviStatus channelMerge(const CuviImage& red,
                        const CuviImage& green,
                        const CuviImage& blue,
                        CuviImage& dst,
                        const CuviStream& stream = CuviStream());

Parameters

Name Type Description
red const CuviImage& Red channel input image
green const CuviImage& Green channel input image
blue const CuviImage& Blue channel input image
dst const CuviImage& 3-channel output Image
stream const CuviStream& GPU stream ID for execution

Image Type Support

Input Output
8uC1 x 3 8uC3
16uC1 x 3 16uC3
32fC1 x 3 32fC3

Sample

Red Channel


Green Channel


Blue Channel


Output Image



Example

//Three single channel images
CuviImage gr = cuvi::io::loadImage(path,CUVI_LOAD_IMAGE_GRAYSCALE);
CuviImage gg = cuvi::io::loadImage(path,CUVI_LOAD_IMAGE_GRAYSCALE);
CuviImage gb = cuvi::io::loadImage(path,CUVI_LOAD_IMAGE_GRAYSCALE);

//A single color image for storing output
CuviImage gout;
	
//Merge R, G and B images into a single colored image
cuvi::colorOperations::channelMerge(gr,gg,gb,gout);
Retrieved from "https://wiki.cuvilib.com/index.php?title=Function:ChannelMerge&oldid=1391"