[GitHub] zhreshold closed pull request #10697: [MXNET-360]auto convert str to bytes in img.imdecode when py3

[GitBox <gi...@apache.org>]

zhreshold closed pull request #10697: [MXNET-360]auto convert str to bytes in img.imdecode when py3
URL: https://github.com/apache/incubator-mxnet/pull/10697
 
 
   

This is a PR merged from a forked repository.
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As this is a foreign pull request (from a fork), the diff is supplied
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diff --git a/python/mxnet/image/image.py b/python/mxnet/image/image.py
index b4b9cc2f1c0..59ebcdd5f3f 100644
--- a/python/mxnet/image/image.py
+++ b/python/mxnet/image/image.py
@@ -21,6 +21,7 @@
 
 from __future__ import absolute_import, print_function
 
+import sys
 import os
 import random
 import logging
@@ -28,6 +29,7 @@
 import warnings
 import numpy as np
 
+
 try:
     import cv2
 except ImportError:
@@ -133,6 +135,9 @@ def imdecode(buf, *args, **kwargs):
     <NDArray 224x224x3 @cpu(0)>
     """
     if not isinstance(buf, nd.NDArray):
+        if sys.version_info[0] == 3 and not isinstance(buf, (bytes, np.ndarray)):
+            raise ValueError('buf must be of type bytes or numpy.ndarray,'
+                             'if you would like to input type str, please convert to bytes')
         buf = nd.array(np.frombuffer(buf, dtype=np.uint8), dtype=np.uint8)
     return _internal._cvimdecode(buf, *args, **kwargs)
 


 

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