标定运行

saveimg.py

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+import cv2
+import threading
+import sys
+from datetime import datetime
+import os
+
+# 全局变量
+frame = None
+running = True
+
+def video_thread():
+    global frame, running
+    cap = cv2.VideoCapture(0, cv2.CAP_ANY)
+    cap.set(cv2.CAP_PROP_FOURCC,cv2.VideoWriter_fourcc(*"YUYV"))
+    cap.set(cv2.CAP_PROP_FRAME_WIDTH, 1920)
+    cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 1080)
+    # cap.set(cv2.CAP_PROP_FPS, 30)
+
+    if not cap.isOpened():
+        print("[ERROR] Cannot open camera", file=sys.stderr)
+        running = Falseq
+        return
+
+    while running:
+        ret, f = cap.read()
+        if not ret:
+            break
+        frame = f.copy()
+        cv2.imshow('Live Feed (Local Display)', f)
+        if cv2.waitKey(1) & 0xFF == ord('q'):
+            running = False
+            break
+
+    cap.release()
+    cv2.destroyAllWindows()
+
+def input_thread():
+    global running
+    print("Commands: 's' = screenshot, 'q' = quit")
+    while running:
+        try:
+            cmd = input().strip().lower()
+            if cmd == 's':
+                if frame is not None:
+                    filename = f"./save_img/shot_{datetime.now().strftime('%Y%m%d_%H%M%S')}.jpg"
+                    cv2.imwrite(filename, frame)
+                    print(f"[SSH] Saved: {os.path.abspath(filename)}")
+                else:
+                    print("[SSH] No frame available yet.")
+            elif cmd == 'q':
+                running = False
+                break
+            else:
+                print("[SSH] Unknown command. Use 's' or 'q'.")
+        except EOFError:
+            break
+
+if __name__ == "__main__":
+    # 启动视频线程
+    vt = threading.Thread(target=video_thread, daemon=True)
+    vt.start()
+
+    # 主线程监听 SSH 输入
+    input_thread()
+
+    print("[INFO] Exiting...")