check_dpi: catch Pillow choking on faulty img, return 230

qurator/eynollah/utils/pil_cv2.py

@@ -15,13 +15,13 @@ def pil2cv(img):
     return cvtColor(pil_as_np_array, color_conversion)
 
 def check_dpi(img):
+    try:
         if isinstance(img, Image.__class__):
             pil_image = img
         elif isinstance(img, str):
             pil_image = Image.open(img)
         else:
             pil_image = cv2pil(img)
-    try:
         exif = OcrdExif(pil_image)
         resolution = exif.resolution
         if resolution == 1: