Dlib: Python dlib module has no image_window attribute?

[gstro]

Hi! Thanks for making a Python API for dlib -- I'm excited to try it out (once I get it working)!

I compiled the examples today and tried to run train_object_detector.py but it gave the following error:

File "train_object_detector.py", line 95, in <module>
    win_det = dlib.image_window()
AttributeError: 'module' object has no attribute 'image_window'

I get the same error from the Python interpreter:

$ python
Python 2.7.9 (default, Jan 18 2015, 00:53:20) 
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.56)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import dlib
>>> window = dlib.image_window()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'image_window'
>>>

I'm on OS X 10.10.2. Any help you can offer would be greatly appreciated.

[gstro]

Deleted examples build and recompiled, and now I can't recreate the error. Not quite through the woods but I don't think this is an issue anymore.

[davisking]

Sweet :)

[vasekjares]

Same issue, recompiled several times and still can't find solution. OS X 10.10.2

[davisking]

What error did you get?

[vasekjares]

Hi,
thank you for quick reaction!
I don't get any errors. But if I use pydoc on compiled package, there is no class image_window.
array
cca_outputs
fhog_object_detector
full_object_detection
matrix
pair
point
points
range
ranges
rangess
ranking_pair
ranking_pairs
rectangle
rectangles
rgb_pixel
segmenter_params
segmenter_test
segmenter_type
shape_predictor
shape_predictor_training_options
simple_object_detector
simple_object_detector_training_options
simple_test_results
sparse_ranking_pair
sparse_ranking_pairs
sparse_vector
sparse_vectors
sparse_vectorss
svm_c_trainer_histogram_intersection
svm_c_trainer_linear
svm_c_trainer_radial_basis
svm_c_trainer_sparse_histogram_intersection
svm_c_trainer_sparse_linear
svm_c_trainer_sparse_radial_basis
svm_rank_trainer
svm_rank_trainer_sparse
vector
vectors
vectorss

I'm using commands from python_examples/compile_dlib_python_module.bat. And I get this:
Linking CXX static library libdlib.a
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libdlib.a(sockets_kernel_1.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libdlib.a(dir_nav_kernel_1.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libdlib.a(threads_kernel_1.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libdlib.a(stack_trace.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libdlib.a(sockets_kernel_1.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libdlib.a(dir_nav_kernel_1.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libdlib.a(threads_kernel_1.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libdlib.a(stack_trace.o) has no symbols

Should it cause that problem?
Thanks!

[davisking]

Those warnings about not having symbols are fine. The issue is probably that it didn't find libx11 on your machine, which is required to use the GUI components. When you initially ran the script it should have output a message saying that it didn't find X11 and that you need to install XQuartz. If you do that then it should work.

[vasekjares]

Thanks! Installing libx11 solved problem.

[jin10086]

@davisking
My computer system is windows7, have the same error.
How should I do it?
Thanks!

[davisking]

You don't need X11 on windows, unless you are trying to compile in something like cygwin.

[jin10086]

@davisking
How do I solve this problem?
.....

[davisking]

http://dlib.net/faq.html#Itdoesn'twork

[jin10086]

i use "conda install -c menpo dlib=18.18" in windows 7 64+py27
and tried to run face_landmark_detection.py but it gave the following error:
`---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
D:\Users\e069383\Desktop\notebook\py\face_landmark_detection.py in ()
65 detector = dlib.get_frontal_face_detector()
66 predictor = dlib.shape_predictor(predictor_path)
---> 67 win = dlib.image_window()
68
69 for f in glob.glob(os.path.join(faces_folder_path, "*.jpg")):

AttributeError: 'module' object has no attribute 'image_window'
`

[davisking]

menpo must have disabled it for some reason. I would download dlib from
the dlib website and use that version.

[jin10086]

i use "conda install -c conda-forge dlib=19.0"
in windows 7 64 py27 can work

[dmittal5]

hi, I have been trying to run face detection file in python on ubuntu. but there is the following error -
Traceback (most recent call last):
File "/home/divya/proj/detect.py", line 9, in
face_detector = dlib.get_frontal_face_detector()
AttributeError: 'module' object has no attribute 'get_frontal_face_detector'

please help!

[abhisheksoni27]

I have libx11-dev installed on my machine, but I am still getting the same error. Anything else I might check?

[davisking]

The compile process prints messages telling you what it's doing. It will announce if it found X11 or not.

[abhisheksoni27]

It does find libx11.so

[jorgher]

All dependencies installed (X11, Boost, Boos.Python, ..)
(opencv) jorgher@jorgher-Lenovo-G575: conda install -c menpo dlib
(opencv) jorgher@jorgher-Lenovo-G575:~/Documents/dlib/python_examples$ python face_detector.py ../examples/faces/*.jpg
Traceback (most recent call last):
File "face_detector.py", line 52, in
win = dlib.image_window()
AttributeError: module 'dlib' has no attribute 'image_window'

pls help

[CHENCHAOQI]

I meet the same problem,and I follow some instruction,but I meet new problem,it is:Illegal instruction (core dumped).
How can I solve it?

[pawanvirsingh]

same with me

import dlib
import skimage
impface_detector = dlib.get_frontal_face_detector()

face_detector = dlib.get_frontal_face_detector()
win = dlib.image_window()
Traceback (most recent call last):
File "", line 1, in
AttributeError: module 'dlib' has no attribute 'image_window'

on ubuntu pls help if someone did before

[davisking]

Install X11 and recompile dlib. When you compile dlib it prints messages
about this that tell you exactly what to do.

[DyLanCao]

on ubuntu . I forget to run the commond on dlib root: python setup.py install

[bhomass]

I installed xquartz on my mac. I also reinstalled dlib, but still I am getting
AttributeError: module 'dlib' has no attribute 'image_window'

Anything else I should be beside install xquartz?

[davisking]

That should be all. Make sure you really are recompiling dlib. Delete everything and redownload.

[bhomass]

yes, rebuild c++ from scratch, then python setup.py install inside my conda env. Finally, it's running. conda install -c menpo dlib does not work.