环境变量

cargo_height_measure.py

@@ -1,3 +1,4 @@
+import os
 import time
 
 import cv2
@@ -7,14 +8,23 @@ from pyorbbecsdk import *
 
 ESC_KEY = 27
 PRINT_INTERVAL = 1  # seconds
-MIN_DEPTH = 500  # mm
-MAX_DEPTH = 4000  # mm
-ROI_WIDTH_CM = 10.0 # cm
-ROI_HEIGHT_CM = 12.0 # cm
 MEDIAN_BLUR_KSIZE = 5  # odd number, 0 to disable
 MORPH_OPEN_KSIZE = 3   # odd number, 0 to disable
 NEAREST_PERCENTILE = 5  # use low percentile to suppress isolated noise (0 for raw min)
 
+def _get_env_int(name, default):
+    value = os.getenv(name)
+    if value is None or value.strip() == "":
+        return default
+    try:
+        return int(value)
+    except ValueError:
+        return default
+
+MIN_DEPTH = _get_env_int("MIN_DEPTH", 500)  # mm
+MAX_DEPTH = _get_env_int("MAX_DEPTH", 4000)  # mm
+ROI_WIDTH_CM = _get_env_int("ROI_WIDTH_CM", 10)  # cm
+ROI_HEIGHT_CM = _get_env_int("ROI_HEIGHT_CM", 12)  # cm
 
 class TemporalFilter:
     def __init__(self, alpha):
@@ -84,9 +94,9 @@ def main():
             center_distance = depth_data[center_y, center_x]
             if center_distance == 0:
                 continue
-            center_distance_m = center_distance / 1000.0
-            half_width_m = (ROI_WIDTH_CM / 100.0) / 2.0
-            half_height_m = (ROI_HEIGHT_CM / 100.0) / 2.0
+            center_distance_m = center_distance / 1000
+            half_width_m = (ROI_WIDTH_CM / 100) / 2
+            half_height_m = (ROI_HEIGHT_CM / 100) / 2
             half_width_px = int(depth_intrinsics.fx * half_width_m / center_distance_m)
             half_height_px = int(depth_intrinsics.fy * half_height_m / center_distance_m)
             if half_width_px <= 0 or half_height_px <= 0: