OpenCV_Add方法

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 1  //ROI的蓝色通道增加150灰度值效果
 2     IplImage* src;
 3     if((src=cvLoadImage("fruit.jpg",1))!=0)
 4     {
 5         int x=10;
 6         int y=20;
 7         int width=50;
 8         int height=100;
 9         int add=150;
10         cvSetImageROI(src,cvRect(x,y,width,height));
11         cvAddS(src,cvScalar(add),src);
12         cvResetImageROI(src);
13         cvNamedWindow("roi_add",1);
14         cvShowImage("roi_add",src);
15         
16 
17     }
18 
19    //addweighted函数调用
20     IplImage *src1,*src2,*dst;
21 
22     if((src1=cvLoadImage("zl.jpg"))!=0&&(src2=cvLoadImage("w.jpg"))!=0)
23     {
24         int x1 = 685;
25         int y1 = 250;
26         int x2=315;
27         int y2=230;
28 
29         double alpha=0.2f;
30         double beta=0.8f;
31         
32         cvNamedWindow("src1",1);
33         cvSetImageROI(src1,cvRect(x1,y1,200,200));
34         cvSetImageROI(src2,cvRect(x2,y2,200,200));
35         cvNamedWindow("alpha_blend",1);
36         cvShowImage("src1",src1);
37         cvAddWeighted(src1,alpha,src2,beta,0.0,src1);
38         cvShowImage("alpha_blend",src1);
39         cvWaitKey();
40 
41     }
posted on 2011-09-30 15:27 Ming明、阅读(1600) 评论(0) 编辑收藏举报