Is there a way to C code a trained CNN to be used in a C/C++ program?

Hi,

I was able to use and transfer learning from a pre-trained Convolutional Neural Network (CNN) following these two useful tutorials: https://www.mathworks.com/help/vision/examples/image-category-classification-using-deep-learning.html http://www.mathworks.com/help/nnet/examples/transfer-learning-using-convolutional-neural-networks.html

The generated object is a 1x1 SeriesNetwork, which is able to classify my set of images with good accuracy. However, I would like to C Code this CNN to use outside Matlab. According to the Neural Network toolbox, I can use the command genFunction to generate a Matlab function that simulate the trained neural network and then use codegen to generate a C/C++ code. However, if I try to call genFunction I receive the following error:

genFunction(convnet,'testConvNet')

Undefined function 'genFunction' for input arguments of type 'SeriesNetwork'.

My question is: Is there any other way to code this trained CNN to use it outside Matlab?

*P.S.: 1- I also used bagOfFeatures function to generate features for my image classification problem. Although the accuracy is not as good as the one obtained with a CNN, I have the same problem, as the generated classifier is an imageCategoryClassifier object. As far as I know, it is not supported by the C code tool. 2- There is a way to train a SVM classifier ( CompactClassificationECOC object), which is supported by the C coder. But because in these tutorials it use the features calculated by the CNN convolutional layers, I still need the CNN convolutional layers to make the SVM work.

I hope these details show that I did my homework before coming here. I have to admit my first contact with C coder tool was a week ago. Before I used to recode the application C after getting Matlab successful tests. Thanks.

[Ram]

Can you describe how you are planning to integrate the generated code and deploy your application? what target platform do you have in mind for the generated code?

[varun rao]

Could you get any solution?

Answer 1

[Swaroop Mishra]

This functionality to generate C/C++ code for a trained CNN does not seem to be present in the current version of MATLAB.