Function:MeanStdDev

Computes the mean and standard deviation of image pixel values

Function

CuviStatus meanStdDev(CuviImage* image, Cuvi64f* mean, Cuvi64f* stdDev, CuviStream* stream = NULL);

Parameters

Name	Type	Description
image	CuviImage*	Input Image
mean	Cuvi64f*	Mean of all pixel values in the image
stdDev	Cuvi64f*	Standard deviation of all pixel values in the image
stream	CuviStream*	GPU stream ID for execution

Image Type Support

Input	Output
8uC1	2 x Cuvi64f single value
8uC3	2 x Cuvi64f three values

Sample

Example

CuviImage* gimg = new CuviImage(size, depth, nChannels); Cuvi64f* mean = new Cuvi64f[nChannels]; Cuvi64f* std= new Cuvi64f[nChannels]; //Upload input data gimg->upload(hostImg->imageData, hostImg->widthStep); //Returns mean as well as standard deviation image pixel values cuvi::arithmeticLogical::meanStdDev(gimg, &mean, &std);