国产精品一区免费视频,精久久久久久,亚洲免费观看在线视频

opencv聯(lián)合cuda進行圖像混合操作

#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

#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

using namespace std;
19

__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);
30

d_dataC[y*width+x].w = 0;
32

}
33

}
34

char *filenameA = "01.JPG";
36

char *filenameB = "02.JPG";
37

int main()
38

{
39

IplImage *imageA = cvLoadImage(filenameA);
40

IplImage *imageB = cvLoadImage(filenameB);
41

uchar4* h_image_dataA =(uchar4*)malloc( (imageA->width)*(imageA->height)*sizeof(uchar4) );
43

for(int i=0;i <imageA->width;i++)
44

{
45

for(int j = 0; j <imageA->height; j++)
46

{
47

h_image_dataA[j*(imageA->width)+i].x = ((unsigned char*)(imageA->imageData+imageA->widthStep*j))[i*3];
48

h_image_dataA[j*(imageA->width)+i].y = ((unsigned char*)(imageA->imageData+imageA->widthStep*j))[i*3+1];
49

h_image_dataA[j*(imageA->width)+i].z = ((unsigned char*)(imageA->imageData+imageA->widthStep*j))[i*3+2];
50

h_image_dataA[j*(imageA->width)+i].w = 0;
51

}
52

}
53

uchar4* h_image_dataB =(uchar4*)malloc( (imageB->width)*(imageB->height)*sizeof(uchar4) );
55

for(int i=0;i <imageB->width;i++)
56

{
57

for(int j = 0; j <imageB->height; j++)
58

{
59

h_image_dataB[j*(imageB->width)+i].x = ((unsigned char*)(imageB->imageData+imageB->widthStep*j))[i*3];
60

h_image_dataB[j*(imageB->width)+i].y = ((unsigned char*)(imageB->imageData+imageB->widthStep*j))[i*3+1];
61

h_image_dataB[j*(imageB->width)+i].z = ((unsigned char*)(imageB->imageData+imageB->widthStep*j))[i*3+2];
62

h_image_dataB[j*(imageB->width)+i].w = 0;
63

}
64

}
65

uchar4* d_dataA = NULL;
67

CUDA_SAFE_CALL( cudaMalloc( (void**)&d_dataA, ( imageA->width*imageA->height*sizeof(uchar4) ) ) );
68

uchar4* d_dataB = NULL;
70

CUDA_SAFE_CALL( cudaMalloc( (void**)&d_dataB, ( imageB->width*imageB->height*sizeof(uchar4) ) ) );
71

uchar4* d_dataC = NULL;
73

CUDA_SAFE_CALL( cudaMalloc( (void**)&d_dataC, ( imageB->width*imageB->height*sizeof(uchar4) ) ) );
74

CUDA_SAFE_CALL( cudaMemcpy( d_dataA, h_image_dataA, imageA->width*imageA->height*sizeof(uchar4), cudaMemcpyHostToDevice) );
76

CUDA_SAFE_CALL( cudaMemcpy( d_dataB, h_image_dataB, imageB->width*imageB->height*sizeof(uchar4), cudaMemcpyHostToDevice) );
77

//
78

LARGE_INTEGER start_time;
79

LARGE_INTEGER end_time;
80

double start = GetTickCount();
81

QueryPerformanceCounter((LARGE_INTEGER*)&start_time);
82

dim3 dimBlock(16, 16, 1);
83

dim3 dimGrid( (imageA->width+dimBlock.x-1)/dimBlock.x, (imageA->height+dimBlock.y-1)/dimBlock.y );
84

main_kernel<<<dimGrid, dimBlock, 0>>>(d_dataC, d_dataA,d_dataB, imageA->width, imageA->height);
85

CUDA_SAFE_CALL(cudaThreadSynchronize());
86

float diff_time = 0.0f;
87

QueryPerformanceCounter((LARGE_INTEGER*)&end_time);
88

diff_time = (float)(((double)end_time.QuadPart - (double)start_time.QuadPart) / 1000000);
89

printf( "time=%f ms\n", diff_time);
90

double end = (GetTickCount() - start)/1000;
92

printf("time used:%f s\n",end);
93

IplImage* imageC = cvCreateImage(cvGetSize(imageA),imageA->depth, imageA->nChannels );
95

uchar4* h_image_dataC =(uchar4*)malloc( (imageC->width)*(imageC->height)*sizeof(uchar4) );
96

CUDA_SAFE_CALL( cudaMemcpy( h_image_dataC, d_dataC, imageC->width*imageC->height*sizeof(uchar4), cudaMemcpyDeviceToHost) );
97

for(int i=0;i <imageC->width;i++)
98

{
99

for(int j = 0; j <imageC->height; j++)
100

{
101

((unsigned char*)(imageC->imageData+imageC->widthStep*j))[i*3] = h_image_dataC[j*imageC->width+i].x;
102

((unsigned char*)(imageC->imageData+imageC->widthStep*j))[i*3+1] = h_image_dataC[j*imageC->width+i].y;
103

((unsigned char*)(imageC->imageData+imageC->widthStep*j))[i*3+2] = h_image_dataC[j*imageC->width+i].z;
104

}
105

}
106

107

cvNamedWindow("test",CV_WINDOW_AUTOSIZE);
108

cvShowImage("test",imageC);
109

110

cvWaitKey(0);
111

cvDestroyAllWindows();
112

113

CUDA_SAFE_CALL(cudaFree(d_dataA));
114

CUDA_SAFE_CALL(cudaFree(d_dataB));
115

CUDA_SAFE_CALL(cudaFree(d_dataC));
116

117

free(h_image_dataA);
118

free(h_image_dataB);
119

free(h_image_dataC);
120

cvReleaseImage(&imageA);
121

cvReleaseImage(&imageB);
122

cvReleaseImage(&imageC);
123

return 0;
124

}

posted on 2009-12-25 10:48 noBugnoGain 閱讀(4987) 評論(9) 編輯收藏引用

青青草原综合久久大伊人导航_色综合久久天天综合_日日噜噜夜夜狠狠久久丁香五月_热久久这里只有精品

常用鏈接

留言簿(3)

隨筆檔案

文章分類

文章檔案

test

搜索

積分與排名

最新評論

閱讀排行榜

評論排行榜

只有注冊用戶登錄后才能發(fā)表評論。
【推薦】100%開源！大型工業(yè)跨平臺軟件C++源碼提供，建模，組態(tài)！



網(wǎng)站導航: 博客園 IT新聞 BlogJava 博問 Chat2DB 管理