新增模型

ruoyi-video/src/main/java/com/ruoyi/video/utils/Overlay.java

@@ -0,0 +1,27 @@
+package com.ruoyi.video.utils;
+
+import com.ruoyi.video.domain.Detection;
+import org.bytedeco.opencv.opencv_core.*;
+import static org.bytedeco.opencv.global.opencv_imgproc.*;
+
+import java.util.List;
+
+public final class Overlay {
+    private Overlay(){}
+
+    public static void draw(List<Detection> dets, Mat frame) {
+        for (Detection d : dets) {
+            Rect r = d.box();
+            int bgr = d.colorBGR();
+            Scalar c = new Scalar(bgr & 0xFF, (bgr >> 8) & 0xFF, (bgr >> 16) & 0xFF, 0);
+            rectangle(frame, r, c, 2, LINE_8, 0);
+            String label = d.cls()+" "+String.format("%.2f", d.conf());
+            int[] baseline = new int[1];
+            Size t = getTextSize(label, FONT_HERSHEY_SIMPLEX, 0.5, 1, baseline);
+            int x = Math.max(0, r.x());
+            int y = Math.max(t.height(), r.y()-4);
+            rectangle(frame, new Rect(x, y-t.height()-4, t.width()+6, t.height()+6), c, FILLED, 0, 0);
+            putText(frame, label, new Point(x+3, y), FONT_HERSHEY_SIMPLEX, 0.5, new Scalar(0,0,0,0), 1, LINE_AA, false);
+        }
+    }
+}