增加一个小工具

tools/get_pixel_xy.py

@@ -0,0 +1,45 @@
+import cv2
+import numpy as np
+
+def resize_image(image, max_size=1200):
+    # 获取原始尺寸
+    height, width = image.shape[:2]
+    # 计算缩放比例
+    scale = min(max_size/width, max_size/height)
+    if scale < 1:
+        # 只有当图像过大时才进行缩放
+        new_width = int(width * scale)
+        new_height = int(height * scale)
+        resized = cv2.resize(image, (new_width, new_height))
+        return resized, scale
+    return image, 1.0
+
+def mouse_callback(event, x, y, flags, param):
+    if event == cv2.EVENT_LBUTTONDOWN:
+        # 计算原始图像上的坐标
+        original_x = int(x / scale)
+        original_y = int(y / scale)
+        print(f'原始图像坐标 (x, y): ({original_x}, {original_y})')
+        # 在缩放后的图像上标记点击位置
+        cv2.circle(displayed_img, (x, y), 3, (0, 255, 0), -1)
+        cv2.imshow('image', displayed_img)
+
+# 读取图像
+img = cv2.imread(r"E:\datasets\UAV\134\project\images\20240312_093841_W_W.jpg")
+if img is None:
+    print('错误：无法读取图像')
+    exit()
+
+# 缩放图像
+displayed_img, scale = resize_image(img)
+
+# 创建窗口并设置鼠标回调函数
+cv2.imshow('image', displayed_img)
+cv2.setMouseCallback('image', mouse_callback)
+
+# 等待按键，按 'q' 退出
+while True:
+    if cv2.waitKey(1) & 0xFF == ord('q'):
+        break
+
+cv2.destroyAllWindows()