Difference between revisions of "Function:RGB2Gray"

Revision as of 08:03, 18 April 2013

Converts an RGB image to gray scale using fixed transform coefficients

CuviStatus rgb2gray(const CuviImage& src,
                    CuviImage& dst,
                    const CuviStream& stream = CuviStream());

Input	Output
8uC3	8uC1
16uC3	16uC1

Color Image

Output Gray Image

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

//function call
cuvi::colorOperations::rgb2gray(gimg,gout);

@@ Line 5: / Line 5: @@
 |style="font-size:150%;"|
 <syntaxhighlight lang="cpp">
-CuviStatus RGB2Gray(CuviImage* srcImage,
+CuviStatus rgb2gray(const CuviImage& src,
-                     CuviImage* dstImage,
+                     CuviImage& dst,
-                     CuviStream* stream = NULL);
+                     const CuviStream& stream = CuviStream());
 </syntaxhighlight>
 |}
@@ Line 20: / Line 20: @@
 ! Description
 |-
-| srcImage
+| src
-| CuviImage*
+| CuviImage&
 | Input 3-channel image
 |-
-| dstImage
+| dst
-| CuviImage*
+| CuviImage&
 | Output single channel image
 |-
 | stream
-| CuviStream*
+| CuviStream&
 | GPU stream ID for execution
@@ Line 64: / Line 64: @@
 <syntaxhighlight lang="cpp">
-CuviImage* gimg = new CuviImage(size,img->depth,img->nChannels);
+CuviImage gimg = cuvi::io::loadImage(path), gout;
-CuviImage* gout = new CuviImage(size,img->depth,1);
-//Uploading RGB image to GPU
-gimg->upload(img->imageData,img->widthStep);
 //function call
-cuvi::colorOperations::RGB2Gray(gimg,gout);
+cuvi::colorOperations::rgb2gray(gimg,gout);
 </syntaxhighlight>
 |}