Function:HaarFwd

Performs one-level wavelet decomposition of an image using haar basis. The four resultant images are half the width and half the height of the original image

Function

CuviStatus haarFwd(CuviImage* srcImage, CuviImage* dstApprox, CuviImage* dstDetailX, CuviImage* dstDetailY, CuviImage* dstDetailXY, CuviStream* stream = NULL);

Parameters

Name	Type	Description
srcImage	CuviImage*	Input image
dstApprox	CuviImage*	Output approximation image
dstDetailX	CuviImage*	Output horizontal detail image
dstDetailY	CuviImage*	Output vertical detail image
dstDetailXY	CuviImage*	Output diagonal detail image
stream	CuviStream*	GPU stream ID for execution

Image Type Support

Input	Output
8uC1	32fC1 x 4

Sample

File:Haar.jpg

Example

//A single color image CuviImage *gimg = new CuviImage(_size,img->depth,img->nChannels); //Three single channel images for storing output CuviImage *gr = new CuviImage(_size,img->depth,1); CuviImage *gg = new CuviImage(_size,img->depth,1); CuviImage *gb = new CuviImage(_size,img->depth,1); //Populate the GPU image with pixel data gimg->upload(img->imageData,img->widthStep); //Split into R, G and B channels CuviStatus st = cuvi::colorOperations::channelSplit(gimg,gr,gg,gb);