项目初始化

utils/opencv_util.py

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+# 增强对比度 + 灰度转换 + 自适应阈值
+import cv2
+
+img = cv2.imread("fb1df265-5085-4bc2-881b-7674b620c4ac.jpg")
+
+# 转灰度图
+gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+
+# 提升对比度
+clahe = cv2.createCLAHE(clipLimit=3.0, tileGridSize=(8, 8))
+enhanced = clahe.apply(gray)
+
+# 二值化处理
+binary = cv2.adaptiveThreshold(enhanced, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
+                               cv2.THRESH_BINARY_INV, 11, 2)
+
+cv2.imwrite("processed.png", binary)