feat.初步完成基建技能目标识别

tools/TransparentImageCvt/main.cpp

@@ -0,0 +1,35 @@
+/******
+* 转换透明图片，若Alpha通道不为255，则直接设置为黑色
+******/
+
+#include <filesystem>
+
+#include <opencv2/opencv.hpp>
+
+int main()
+{
+    std::string input_dir = R"(D:\Code\MeoAssistance\resource\infrast)";
+    std::string output_dir = R"(D:\Code\MeoAssistance\resource\infrast\cvt\)";
+
+    for (auto&& entry : std::filesystem::directory_iterator(input_dir)) {
+        if (entry.path().extension() != ".png") {
+            continue;
+        }
+        cv::Mat image = cv::imread(entry.path().u8string(), -1);
+        cv::Mat cvt;
+
+        cv::cvtColor(image, cvt, cv::COLOR_BGRA2BGR);
+        for (int c = 0; c != image.cols; ++c) {
+            for (int r = 0; r != image.rows; ++r) {
+                auto p = image.at<cv::Vec4b>(c, r);
+                if (p[3] != 255) {
+                    cvt.at<cv::Vec3b>(c, r) = cv::Vec3b(0, 0, 0);
+                }
+            }
+        }
+        std::string out_file = output_dir + entry.path().filename().u8string();
+        cv::imwrite(out_file, cvt);
+    }
+
+    return 0;
+}