extract_weights.py.....did not match C++ signature:

[sainisanjay]

Hi all, @pekala, @cash @j6k4m8 @wrgr @griffinmilsap @cratto
I am trying to run extract_weights.py to save the weights in file but i an getting error as below. I have tried #BVLC/caffe#3220 but no luck. I am using:
platform : linux-64
conda version : 4.3.21
conda-env version : 4.3.21
python version : 2.7.13.final.0

> .....python ./extract_weights.py -m lenet_tn_iter_30000.caffemodel -n lenet_tn.prototxt

Traceback (most recent call last):
  File "./extract_weights.py", line 26, in <module>
    net = caffe.Net(args.netFile, args.modelFile)
Boost.Python.ArgumentError: Python argument types in
    Net.__init__(Net, str, str)
did not match C++ signature:
    __init__(boost::python::api::object, std::string, std::string, int)
    __init__(boost::python::api::object, std::string network_file, int phase, int level=0, boost::python::api::object stages=None, boost::python::api::object weights=None)

Any idea???

[cash]

Looks like the pycaffe API changed for Net between 1.0rc1 and 1.0rc2. Try changing line 26 of extract_weights.py to

net = caffe.Net(args.netFile, args.modelFile, caffe.TRAIN)

I'm not that familiar with this code so it may be that you need to use caffe.TEST instead. Also you may run into other version incompatibilities.

[mjpekala]

Hi sainisanjay,
I would also mention that this code is pretty old and isn't actively used as far as I'm aware. If you are interested in processing neurodata I would suggest you take a look at https://neurodata.io and https://neurodata.io/tools/ndparse/. If you are interested in semantic segmentation in general you will probably be better off with a more modern algorithm, e.g. see https://arxiv.org/abs/1505.04597.

[sainisanjay]

Hi @cash and @mjpekala,
Actually, i just want to extract the weights from my trained caffe model thus i tried to used yours code (extract_weights.py). But, unfortunately its doesn't working with current Caffe. BTW, thanks to both of you for your support and suggestions. If you have some other code which can extract the weights from latest caffe please let me know. Thanks

[sainisanjay]

Hi @cash, Thanks for your suggestion, caffe.TEST works for me. First i update my Boost version to 1.60.0 and than it worked. Thanks