CNTL Image Detection Example not working on Windows Data Science Virtual Machine (DSVM) ?

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  Hi,

  Please install boost and dlib from conda:

  conda install -c menpo dlib boost

  Then pip install the other packages. Also note that the default Python environment on Windows is 2.7, and you will have to activate the 3.5 environment if that is where you want to install the packages:

  activate py35

  -Paul

  Wednesday, January 3, 2018 7:40 PM
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  great, tx, willl give it a try! :)

  Wednesday, January 3, 2018 7:41 PM
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  Hi,

  tx again paul, was able to install the packages using your suggestion.

  however I do get another error now when running the "python run_fast_rcnn.py" command:

  --------------

  (C:\Anaconda\envs\py35) c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN>python run_fast_rcnn.py
  Selected CPU as the process wide default device.
  Using base model:   AlexNet
  lr_per_sample:      [0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.0001]
  Training model for 20 epochs.
  Training 57216469 parameters in 21 parameter tensors.
  -------------------------------------------------------------------
  Build info:
  
                  Built time: Sep 15 2017 07:42:54
                  Last modified date: Thu Sep 14 22:33:54 2017
                  Build type: Release
                  Build target: GPU
                  With 1bit-SGD: no
                  With ASGD: yes
                  Math lib: mkl
                  CUDA version: 9.0.0
                  CUDNN version: 6.0.21
                  Build Branch: HEAD
                  Build SHA1: 23878e5d1f73180d6564b6f907b14fe5f53513bb
                  MPI distribution: Microsoft MPI
                  MPI version: 7.0.12437.6
  -------------------------------------------------------------------
  Traceback (most recent call last):
    File "run_fast_rcnn.py", line 32, in <module>
      trained_model = train_fast_rcnn(cfg)
    File "c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN\FastRCNN_train.py", line 345, in train_fast_rcnn
      data = od_minibatch_source.next_minibatch(min(cfg.MB_SIZE, cfg["DATA"].NUM_TRAIN_IMAGES - sample_count), input_map=input_map)
    File "c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN\..\utils\od_mb_source.py", line 70, in next_minibatch
      img_data, roi_data, img_dims, proposals, label_targets, bbox_targets, bbox_inside_weights = self.od_reader.get_next_input()
    File "c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN\..\utils\od_reader.py", line 63, in get_next_input
      img_data, img_dims = self._load_resize_and_pad_image(index)
    File "c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN\..\utils\od_reader.py", line 215, in _load_resize_and_pad_image
      self._prepare_annotations_proposals_and_stats(index, img)
    File "c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN\..\utils\od_reader.py", line 181, in _prepare_annotations_proposals_and_stats
      proposals = self._proposal_provider.get_proposals(index, img)
    File "c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN\..\utils\proposal_helpers.py", line 277, in get_proposals
      return compute_proposals(img, num_proposals, self._proposal_cfg)
    File "c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN\..\utils\proposal_helpers.py", line 100, in compute_proposals
      if not ss_lib_loaded: load_selective_search_lib()
    File "c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN\..\utils\proposal_helpers.py", line 22, in load_selective_search_lib
      from dlib import find_candidate_object_locations as algo
  ImportError: DLL load failed: The specified procedure could not be found.
  
  (C:\Anaconda\envs\py35) c:\dsvm\tools\cntk\Examples\Image\Detection\FastRCNN>

  ---------

  did find some similar posts, seem to be related to anaconda? (https://github.com/Microsoft/CNTK/issues/2423)
  again would greatly appreciate any help :)
  
  thanks again,

  
  
  

  • Edited by Rudgr Thursday, January 4, 2018 11:09 AM

  Thursday, January 4, 2018 9:57 AM
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  I hate to say it, but that works for me :)

  It sounds like dlib is complaining that it can't load a DLL. What happens if you start a new python session, then import dlib? 

  Thursday, January 4, 2018 8:05 PM
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  haha, yeah #worksonmymachine ;-)

  greatly appreciate your help BTW, must be missing/doing somethnig stupid here.

  I tried importing dlib from a clean session:

  (C:\Anaconda\envs\py35) C:\Users\rbuijzen\Documents>python -c "import dlib"
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
  ImportError: DLL load failed: The specified procedure could not be found.

  tx again

  PS: It's a clean DataScience Virtual Machine, so would be happy to privately share a login with you if that would help?

  Sunday, January 7, 2018 12:41 PM
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  A login would be great. Email me at paulsh at microsoft dot com. 

  Monday, January 8, 2018 6:46 PM
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  you've got mail. tx

  Monday, January 8, 2018 7:58 PM
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  We synced up offline and confirmed that one of the earlier attempts to install dlib is causing this issue. Creating a new Conda environment and installing there worked.

  • Marked as answer by Paul Shealy [MSFT]Microsoft employee Monday, January 8, 2018 8:52 PM

  Monday, January 8, 2018 8:52 PM
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  It looks like CNTK may be writing a version of zlib.dll in the conda environment in c:\anaconda\envs\py35 directory that seems to break while trying to load the dlib.  As a workaround, I just moved the zlib.dll in that directory to something else (say zlib_.dll). 

  Thursday, January 25, 2018 7:30 PM