Mat對象的位操作

opencv中可以對Mat對象可以進行位操作，主要有與，非，或，異或操作

具體代碼爲 1 #include <iostream>

 1 #include <iostream>
 2 #include <opencv2/opencv.hpp>
 3 using namespace cv;
 4 using namespace std;
 5 
 6 int main(int args, char** argv)
 7 {
 8     Mat src = imread("E:/OpenCV/bin/Resource/lena.jpg", IMREAD_UNCHANGED);
 9     if (src.empty()) {
10         printf("could not find image");
11         return -1;
12     }
13     namedWindow("input", WINDOW_AUTOSIZE);
14     imshow("input", src);
15    
16     //圖像取反
17     Mat reverse;
18     bitwise_not(src, reverse);
19     imshow("bitwise_not", reverse);
20 
21     Mat reverse1;
22     Mat mask=Mat::zeros(src.size(),CV_8UC1);
23     Mat mask2 = Mat::zeros(src.size(), CV_8UC1);
24     int w = src.cols / 2;
25     int h = src.rows / 2;
26     for (int row = 50; row < h; row++)
27     {
28         for (int col = 100; col < w; col++)
29         {
30             mask.at<uchar>(row, col) = 127;
31             mask2.at<uchar>(row, col) = 50;
32         }
33     }
34     bitwise_not(src, reverse1,mask);
35     imshow("bitwise_not1", reverse1);
36 
37     //與操作
38     Mat and1;
39     bitwise_and(src, src, and1, mask);
40     imshow("bitwise_and1", and1);
41 
42     //或操作
43     Mat or1;
44     bitwise_or(src, src, or1, mask);
45     imshow("bitwise_or1", or1);
46 
47     //異或操作
48     Mat xor1;
49     bitwise_xor(src, and1, xor1);
50     imshow("bitwise_xor1", xor1);
51     while (waitKey(50) != 27)
52     {
53 
54     }
55     destroyAllWindows();
56     return 0;
57 }

顯示結果爲：