add & subtract

Arithmetic operations/plus.cpp

@@ -0,0 +1,39 @@
+// 加法
+# include<opencv2/opencv.hpp>
+# include<iostream>
+
+using namespace std;
+using namespace cv;
+
+int main()
+{
+    string path1 = "../img/2.jpg";
+    string path2 = "../img/3.jpg";
+
+    Mat img1 = imread(path1);
+    Mat img2 = imread(path2);
+
+    if (img1.empty() || img2.empty()) {
+        cout << "无法读取图片，请检查路径！" << endl;
+        return -1;
+    }
+
+    if (img1.size() != img2.size()) {
+        cout << "尺寸不一致，正在自动调整 img2 的尺寸..." << endl;
+        // 将 img2 缩放到与 img1 相同的尺寸
+        resize(img2, img2, img1.size());
+    }
+    
+    Mat result ;
+    add(img1, img2, result);
+
+    imshow("Original Image 1", img1);
+    imshow("Original Image 2", img2);
+    imshow("Add Result", result);
+
+    // 等待按键后关闭窗口
+    waitKey(0);
+    destroyAllWindows();
+
+    return 0;
+}

Arithmetic operations/subtract.cpp

@@ -0,0 +1,39 @@
+// 减法，与加法基本一样，只把add改成了subtract.
+# include<opencv2/opencv.hpp>
+# include<iostream>
+
+using namespace std;
+using namespace cv;
+
+int main()
+{
+    string path1 = "../img/2.jpg";
+    string path2 = "../img/3.jpg";
+
+    Mat img1 = imread(path1);
+    Mat img2 = imread(path2);
+
+    if (img1.empty() || img2.empty()) {
+        cout << "无法读取图片，请检查路径！" << endl;
+        return -1;
+    }
+
+    if (img1.size() != img2.size()) {
+        cout << "尺寸不一致，正在自动调整 img2 的尺寸..." << endl;
+        // 将 img2 缩放到与 img1 相同的尺寸
+        resize(img2, img2, img1.size());
+    }
+    
+    Mat result ;
+    subtract(img1, img2, result);
+
+    imshow("Original Image 1", img1);
+    imshow("Original Image 2", img2);
+    imshow("Subtract Result", result);
+
+    // 等待按键后关闭窗口
+    waitKey(0);
+    destroyAllWindows();
+
+    return 0;
+}

basic/readpixel.cpp

@@ -10,7 +10,8 @@ int main()
     string image_path = "../img/1.png";
     Mat image = imread(image_path);
 
-    if (image.empty()) {
+    if (image.empty())
+    {
         cout << "错误：无法加载图像，请检查路径是否正确。" << endl;
         return -1;
     }
@@ -20,5 +21,4 @@ int main()
     cout << "B: " << (int)pixel_value[0] << " "
          << "G: " << (int)pixel_value[1] << " "
          << "R: " << (int)pixel_value[2] << endl;
-
 }

basic/roi.cpp

@@ -11,7 +11,8 @@ int main()
     Mat image = imread(image_path);
     Mat result = image.clone();
 
-    if (image.empty()) {
+    if (image.empty())
+    {
         cout << "错误：无法加载图像，请检查路径是否正确。" << endl;
         return -1;
     }
@@ -24,5 +25,4 @@ int main()
     waitKey(0);
 
     return 0;
-
 }

basic/zoom.cpp

@@ -1,10 +1,12 @@
 #include <opencv2/opencv.hpp>
 #include <iostream>
 
-int main() {
+int main()
+{
     // 读取图像
     cv::Mat img = cv::imread("../img/1.png");
-    if (img.empty()) {
+    if (img.empty())
+    {
         std::cout << "无法读取图像" << std::endl;
         return -1;
     }