Difference between revisions of "Function:Crop"

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__NOTOC__
__NOTOC__
rops the desired portion of an image
Crops the desired portion of an image
===Function===
===Function===
{|
{|
|style="font-size:150%;"|
|style="font-size:150%;"|
<syntaxhighlight lang="cpp">
<syntaxhighlight lang="cpp">
CuviStatus crop(CuviImage* srcImage,
CuviStatus crop(const CuviImage& src,
                 CuviImage* dstImage,
                 CuviImage& dst,
                 Cuvi32s top,
                 Cuvi32s top,
                 Cuvi32s bottom,
                 Cuvi32s bottom,
                 Cuvi32s left,
                 Cuvi32s left,
                 Cuvi32s right,
                 Cuvi32s right,
                 CuviStream* stream = NULL);
                 const CuviStream& stream = CuviStream());
</syntaxhighlight>
</syntaxhighlight>
|}
|}
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! Description
! Description
|-
|-
| srcImage
| src
| CuviImage*
| const CuviImage&
| Input Image
| Input Image
|-
|-
| dstImage
| dst
| CuviImage*
| CuviImage&
| Output Image
| Output Image
|-
|-
| top
| top
| Cuvi32u
| const Cuvi32s
| Number of pixels to cut from top
| Number of pixels to cut from top
|-
|-
| bottom
| bottom
| Cuvi32u
| const Cuvi32s
| Number of pixels to cut from bottom
| Number of pixels to cut from bottom
|-
|-
| left
| left
| Cuvi32u
| const Cuvi32s
| Number of pixels to cut from left
| Number of pixels to cut from left
|-
|-
| right
| right
| Cuvi32u
| const Cuvi32s
| Number of pixels to cut from right
| Number of pixels to cut from right
|-
|-
| stream  
| stream  
| CuviStream*
| const CuviStream&
| GPU stream ID for execution
| GPU stream ID for execution


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gimg = new CuviImage(size_in,img->depth,img->nChannels);
CuviImage gimg = cuvi::io::loadImage(path), gout;
gout = new CuviImage(size_out,img->depth,img->nChannels);
 
gimg->upload(img->imageData,img->widthStep);


//Cropping parameters
//Cropping parameters
int top = 20, bottom = 20, left = 5, right = 10;
const int top = 20, bottom = 20, left = 5, right = 10;


//crop. Output image size must conform to cropped size
//crop. Output image size must conform to cropped size

Latest revision as of 09:09, 30 June 2019

Crops the desired portion of an image

Function

CuviStatus crop(const CuviImage& src,
                CuviImage& dst,
                Cuvi32s top,
                Cuvi32s bottom,
                Cuvi32s left,
                Cuvi32s right,
                const CuviStream& stream = CuviStream());

Parameters

Name Type Description
src const CuviImage& Input Image
dst CuviImage& Output Image
top const Cuvi32s Number of pixels to cut from top
bottom const Cuvi32s Number of pixels to cut from bottom
left const Cuvi32s Number of pixels to cut from left
right const Cuvi32s Number of pixels to cut from right
stream const CuviStream& GPU stream ID for execution

Image Type Support

Input Output
8uC1 8uC1
8uC3 8uC3
16uC1 16uC1
16uC3 16uC3

Sample

Input
Cropped


Example

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

//Cropping parameters
const int top = 20, bottom = 20, left = 5, right = 10;

//crop. Output image size must conform to cropped size
cuvi::geometryTransforms::crop(gimg,gout,top,bottom,left,right);
Retrieved from "https://wiki.cuvilib.com/index.php?title=Function:Crop&oldid=1003"