opencv裁剪图片c++

要使用OpenCV裁剪图片，你可以使用以下代码示例中的任一方法：
1.

#include <opencv2/opencv.hpp>
#include <iostream>

using namespace std;
using namespace cv;

int main() {
    // 读取图片
    Mat img = imread("test.jpg");

    // 裁剪图片
    Mat cropped_image = img(Range(400,1200), Range(350,700));

    // 显示原始图片和裁剪后的图片
    imshow("原始图片", img);
    imshow("裁剪后的图片", cropped_image);

    // 保存裁剪后的图片
    imwrite("裁剪后的图片.jpg", cropped_image);

    // 等待按键退出
    waitKey(0);

    // 销毁窗口
    destroyAllWindows();

    return 0;
}

2.

#include <opencv2/opencv.hpp>
#include <iostream>

using namespace std;
using namespace cv;

int main() {
    // 读取图片
    cv::Mat img;
    cv::Rect m_select;
    img = imread("F://Visual Studio 2015//ROItest01//ROItest01//01.jpg");

    // 显示原始图片
    imshow("原图", img);

    // 裁剪图片
    m_select = Rect(0,0,111,217);
    Mat ROI = img(m_select);

    // 显示裁剪后的图片
 
#### 引用[.reference_title]
-  *1* [opencv图像裁剪（C++）](https://blog.csdn.net/weixin_44487231/article/details/112849701)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
-  *2* *3* [OpenCV入门（C++/Python）-使用OpenCV裁剪图像（四）](https://blog.csdn.net/weixin_42010722/article/details/128183509)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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