[GitHub] jasperDD opened a new issue #14204: can't create rec file im2rec in python

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jasperDD opened a new issue #14204: can't create rec file im2rec in python
URL: https://github.com/apache/incubator-mxnet/issues/14204
 
 
   i do as shown  here https://github.com/apache/incubator-mxnet/issues/14164
   import mxnet
   test='C:/Users/Admin/Desktop/test.lst' # folder where must be my test.lst
   DataSet='C:/Users/Admin/Downloads/mypic/' # folder with my pictures (20 pics)
   
   then when i try
   data_iter = mx.image.ImageIter(
       batch_size=4, 
       data_shape=(3,816, 1232),
       label_width=1,
       path_imglist='test.lst',
       path_root='DataSet')  
   
   
   for data in data_iter:  
       d = data.data[0]  
       break  
     
   here error 
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   NameError: name 'data_iter' is not defined
   >>>
   
   then
   img =nd.transpose(d,(0,2,3,1))  
   print(img.shape)  
   io.imshow(img[0].asnumpy().astype(np.uint8))  
   io.show()
   
   and the errors
   >>> img =nd.transpose(d,(0,2,3,1))
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   NameError: name 'nd' is not defined
   >>> print(img.shape)
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   NameError: name 'img' is not defined
   >>> io.imshow(img[0].asnumpy().astype(np.uint
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   NameError: name 'io' is not defined
   >>> io.show()
   
   when i try create step 2. make .rec file
   
   train_iter = mx.image.ImageIter(  
       batch_size=32,  
      data_shape=(3, 816, 1232),  
      path_imgrec='data.rec',  
      path_imgidx='data.idx',  #help shuffle performance
      shuffle=True,  
      aug_list=[mx.image.HorizontalFlipAug(0.5)]  
   )
   
     
   train_iter.reset()  
   for batch in train_iter:  
       x = batch.data[0]  
       break  
     
   img =nd.transpose(x,(0,2,3,1))  
   print(img.shape)  
   io.imshow(img[0].asnumpy().astype(np.uint8))  
   io.show()
   i get the error
   
   
   test='C:/Users/Admin/Desktop/test.rec'
   Dataset='C:/Users/Admin/Downloads/mypic'
   
   >>> train_iter = mx.image.ImageIter(
   ...     batch_size=32,
   ...    data_shape=(3, 816, 1232),
   ...    path_imgrec='data.rec',
   ...    path_imgidx='data.idx',  #help shuffle performance
   ...    shuffle=True,
   ...    aug_list=[mx.image.HorizontalFlipAug(0.5)]
   ... )
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   NameError: name 'mx' is not defined
   >>>
   >>>
   ... train_iter.reset()
   Traceback (most recent call last):
     File "<stdin>", line 2, in <module>
   NameError: name 'train_iter' is not defined
   >>> for batch in train_iter:
   ...     x = batch.data[0]
   ...     break
   ...
   ... img =nd.transpose(x,(0,2,3,1))
     File "<stdin>", line 5
       img =nd.transpose(x,(0,2,3,1))
         ^
   SyntaxError: invalid syntax
   >>> print(img.shape)
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   NameError: name 'img' is not defined
   >>> io.imshow(img[0].asnumpy().astype(np.uint8))
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   NameError: name 'io' is not defined
   >>> io.show()
   
   
   
   
   How to fix these errors to create .lst and .rec file?
   
   here example of one of my picture form mypic
   https://github.com/apache/incubator-mxnet/blob/master/example/captcha/captcha_example.png

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