Fix: workaround for drawing non-latin characters (#7686)

* Add transliteration support to draw_box_with_label function

* isort

frigate/util/image.py

@@ -9,10 +9,32 @@ from typing import AnyStr, Optional
 
 import cv2
 import numpy as np
+from unidecode import unidecode
 
 logger = logging.getLogger(__name__)
 
 
+def transliterate_to_latin(text: str) -> str:
+    """
+    Transliterate a given text to Latin.
+
+    This function uses the unidecode library to transliterate the input text to Latin.
+    It is useful for converting texts with diacritics or non-Latin characters to a
+    Latin equivalent.
+
+    Args:
+        text (str): The text to be transliterated.
+
+    Returns:
+        str: The transliterated text.
+
+    Example:
+        >>> transliterate_to_latin('frégate')
+        'fregate'
+    """
+    return unidecode(text)
+
+
 def draw_timestamp(
     frame,
     timestamp,
@@ -116,7 +138,10 @@ def draw_box_with_label(
 ):
     if color is None:
         color = (0, 0, 255)
-    display_text = "{}: {}".format(label, info)
+    try:
+        display_text = transliterate_to_latin("{}: {}".format(label, info))
+    except Exception:
+        display_text = "{}: {}".format(label, info)
     cv2.rectangle(frame, (x_min, y_min), (x_max, y_max), color, thickness)
     font_scale = 0.5
     font = cv2.FONT_HERSHEY_SIMPLEX