CUDA与OpenCV协作：图像混合C++实现

opencv联合cuda进行图像混合操作作者：noBugnoGain  来源：C++博客  发布时间：2009-12-25 10:48  阅读：930 次  原文链接   [收藏]   
  1#include <cutil_inline.h>
  2#include <cv.h>
  3#include <cstdio>
  4#include <iostream>
  5#include <cutil.h>
  6#include <ctime>
  7#include <cstdlib>
  8#include <highgui.h>
  9#include <windows.h>
 10
 11#pragma comment(lib, "cuda.lib")
 12#pragma comment(lib, "cudart.lib")
 13#pragma comment(lib, "cutil32.lib")
 14#pragma comment(lib, "cv.lib")
 15#pragma comment(lib, "cxcore.lib")
 16#pragma comment(lib, "highgui.lib")
 17
 18using namespace std;
 19
 20__global__ void main_kernel(uchar4* d_dataC, uchar4* d_dataA, uchar4* d_dataB, int width, int height)
 21{
 22    unsigned int x = blockIdx.x*blockDim.x+threadIdx.x;
 23    unsigned int y = blockIdx.y*blockDim.y+threadIdx.y;
 24    float w = 0.2;
 25    if( x>0 && x < width && y>0 && y < height )
 26    {
 27        d_dataC[y*width+x].x = (unsigned char)(w*d_dataA[y*width+x].x+(1-w)*d_dataB[y*width+x].x);
 28        d_dataC[y*width+x].y = (unsigned char)(w*d_dataA[y*width+x].y+(1-w)*d_dataB[y*width+x].y);
 29        d_dataC[y*width+x].z = (unsigned char)(w*d_dataA[y*width+x].z+(1-w)*d_dataB[y*width+x].z);