OpenCv 007---像素操作的逻辑操作

 

1 所用到的主要OpenCv API

/** @brief 逻辑与

@param src1 first input array or a scalar.

@param src2 second input array or a scalar.

@param dst output array that has the same size and type as the input arrays.

@param mask optional operation mask, 8-bit single channel array, that
specifies elements of the output array to be changed.
*/

CV_EXPORTS_W void bitwise_and(InputArray src1, InputArray src2,
                             OutputArray dst, InputArray mask = noArray());

/** @brief 逻辑或

@param src1 first input array or a scalar.
@param src2 second input array or a scalar.
@param dst output array that has the same size and type as the input arrays.
@param mask optional operation mask, 8-bit single channel array, that
specifies elements of the output array to be changed.
*/

CV_EXPORTS_W void bitwise_or(InputArray src1, InputArray src2,
                             OutputArray dst, InputArray mask = noArray());

/** @brief 逻辑异或

@param src1 first input array or a scalar.
@param src2 second input array or a scalar.
@param dst output array that has the same size and type as the input arrays.
@param mask optional operation mask, 8-bit single channel array, that
specifies elements of the output array to be changed.
*/

CV_EXPORTS_W void bitwise_xor(InputArray src1, InputArray src2,
                             OutputArray dst, InputArray mask = noArray());

/** @brief Inverts every bit of an array.取反

@param src input array.
@param dst output array that has the same size and type as the input
array.
@param mask optional operation mask, 8-bit single channel array, that
specifies elements of the output array to be changed.
*/

CV_EXPORTS_W void bitwise_not(InputArray src, OutputArray dst,
                              InputArray mask = noArray());

2 程序代码

#include "opencv2\opencv.hpp"
#include <iostream>

using namespace std;
using namespace cv;

int main(int argc, char *argv[])
{
    //创建图片1
    Mat src1 = Mat::zeros(Size(400, 400), CV_8UC3);
    Rect rect(100, 100, 100, 100);
    src1(rect) = Scalar(0, 0, 255);//bgr
    imshow("input1",src1);
    printf("创建第一张图片...\n");

    //创建图片2
    Mat src2 = Mat::zeros(Size(400, 400), CV_8UC3);
    rect.x = 150;
    rect.y = 150;
    src2(rect) = Scalar(0, 0, 255);//bgr
    imshow("input2", src2);
    printf("创建第二张图片...\n");

        //取反操作
    Mat src = imread("G:\\CVworkstudy\\program_wwx\\研习社140课时\\ZhaiZhigang140\\lena.jpg");
    imshow("input", src);
    Mat dst;
    bitwise_not(src, dst);
    //逻辑操作
    Mat dst1, dst2, dst3;
    bitwise_and(src1,src2,dst1);
    bitwise_or(src1, src2, dst2);
    bitwise_xor(src1, src2, dst3);
    
    
    //结果显示
    imshow("取反操作", dst);
    imshow("逻辑与", dst1);
    imshow("逻辑或", dst2);
    imshow("逻辑异或", dst3);

    waitKey(0);
    return 0;
}

3 运行结果