Fix: Variable used before initialized in ocr method

Author: AzureG03

module/ocr/pp_ocr.py

@@ -77,6 +77,8 @@ def ocr(self, img, detect=True):
                 image = img[y:y + h, x:x + w]
             else:
                 image = img
+        else:
+            image = img
 
         image = self._preprocess_image(image)
         preds = self._predict(image)