feat: added rotation config

control/camera.py

@@ -1,6 +1,7 @@
 from io import BytesIO
 import os.path
 from typing import Optional
+import configparser
 
 import cv2
 from PIL import Image
@@ -13,16 +14,36 @@ FACE_DATA = next(filter(os.path.exists, [
 face_cascade = cv2.CascadeClassifier(FACE_DATA)
 
 
+def get_rotate_value(input_value):
+    if input_value == '0':
+        return None
+
+    if input_value == '90':
+        return cv2.ROTATE_90_CLOCKWISE
+    if input_value == '-90' or input_value == '270':
+        return cv2.ROTATE_90_COUNTERCLOCKWISE
+    if input_value == '180':
+        return cv2.ROTATE_180
+    raise ValueError(f"Unsupported rotation value {input_value!r}")
+
+
 class Camera:
     capture: cv2.VideoCapture
 
     def __init__(self):
         self.capture = cv2.VideoCapture(0)
+        parser = configparser.ConfigParser()
+        parser.read('config.ini')
+        self.config = parser['camera']
+
+        self.rotate = get_rotate_value(self.config['rotate'])
 
     def get_image(self) -> Optional[bytes]:
         return_code, image = self.capture.read()
         if not return_code:
             return None
+        if self.rotate is not None:
+            image = cv2.rotate(image, self.rotate)
         image_gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
 
         faces = face_cascade.detectMultiScale(image_gray, 1.3, 5)