Difference between revisions of "Function:MinFilter"

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(Created page with "__NOTOC__ Filters an image using a min filter and default Anchor Position ===Function=== {| |style="font-size:150%;"| <syntaxhighlight lang="cpp"> CuviStatus minFilter(CuviIma...")
 
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|[[File:Filterinc.jpg‎|frame|Input]]
|[[File:Color_window.jpg‎|frame|Input]]
|[[File:Filtera55.jpg|frame|Average 5x5]]
|[[File:Min5x5_out.jpg|frame|Min 5x5]]


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CuviROI roi = cuviROI(0,0,img->width,img->height);
CuviROI roi = cuviROI(0,0,img->width,img->height);


//Creating a 5x5 Averaging Filter. User can also enter custom coefficients
//Filter Size
CuviFilter* f;
CuviSize  fSize = cuviSize(5,5);
cuviCreateFilter(&f,5,5);
cuviCreateFilterSpecial(f,CUVI_FILTER_AVERAGE);


//Applying filter 'f' on the image
//Applying Min 5x5 filter
cuvi::imageFiltering::imFilter(gimg,gout,roi,f);
cuvi::imageFiltering::minFilter(gimg, gout, roi, fSize);


</syntaxhighlight>
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Revision as of 15:47, 1 May 2012

Filters an image using a min filter and default Anchor Position

Function

CuviStatus minFilter(CuviImage* srcImage,
                     CuviImage* dstImage,
                     CuviROI roi,
                     CuviSize filterSize,
                     CuviStream* stream = NULL);

Parameters

Name Type Description
srcImage CuviImage* Input Image
dstImage CuviImage* Output Image
roi CuviROI Region of Interest
filterSize CuviSize Min filter's kernel size
stream CuviStream* GPU stream ID for execution

Image Type Support

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


Sample

Error creating thumbnail: Unable to save thumbnail to destination
Input
Error creating thumbnail: Unable to save thumbnail to destination
Min 5x5


Example

//Input image
CuviImage* gimg = new CuviImage(cuviSize(img->width,img->height),img->depth,img->nChannels);
gimg->upload(img->imageData,img->widthStep);

//Output Image
CuviImage* gout = new CuviImage(cuviSize(img->width,img->height),img->depth,img->nChannels);

//Choosing ROI
CuviROI roi = cuviROI(0,0,img->width,img->height);

//Filter Size
CuviSize  fSize = cuviSize(5,5);

//Applying Min 5x5 filter
cuvi::imageFiltering::minFilter(gimg, gout, roi, fSize);
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