simplify read_image

Author: KaiyangZhou

dassl/utils/tools.py

@@ -117,18 +117,7 @@ def read_image(path):
     Returns:
         PIL image
     """
-    if not osp.exists(path):
-        raise IOError("No file exists at {}".format(path))
-
-    while True:
-        try:
-            img = Image.open(path).convert("RGB")
-            return img
-        except IOError:
-            print(
-                "Cannot read image from {}, "
-                "probably due to heavy IO. Will re-try".format(path)
-            )
+    return Image.open(path).convert("RGB")
 
 
 def collect_env_info():