help on import caffe network

Problem:

I am trying to import a caffe network (https://github.com/WHUQZhang/PSTCR/blob/master/Def/Model.prototxt) to matlab and got the following error:

>> importCaffeLayers('model.prototxt')

Error using nnet.internal.cnn.caffe.CaffeModelReader/makeAdditionLayer (line 1295)

The layer 'anti_mask' specifies an unsupported element-wise operation. Only addition is supported.

Error in nnet.internal.cnn.caffe.CaffeModelReader/importLayers (line 287)

layers(layerIdx) = makeAdditionLayer(this, origLayerIdxInFile);

Error in importCaffeLayers (line 73)

layers = importLayers(readerObj);

Question:

I learnt deep learning via matlab and have no knowledge about caffe at all. But it seems that the problem is caused by the last layer of the caffe model:

layer {

name: "anti_mask"

type: "Eltwise"

bottom: "conv11"

bottom: "data_3"

top: "anti_mask"

eltwise_param {

operation: PROD

}

}

It seems to me that the above layer is to do a pixel-wise multiplication. I assume that Matlab should be able to easily support that. Would you please help how to get around this issue?

[ghada sandoub]

Hi Qi Chen,

I hope that you find a solution to your problem. I have the same problem of having no experience in using caffe on Matlab. I have my own convolutional neural network and I want to train the network using Caffe package in Matlab R2018a. I installed the importer for Caffe models in Matlab. I used the following link to guide me how to start using caffe model to train my network step by step https://www.mathworks.com/help/deeplearning/ref/importcaffelayers.html . however I have some questions:

1. the first step after installing the Caffe package is to download the required support package by typing importCaffeLayers at the command line. however, when I typed this command at the command line , I have the following error:

>> importCaffeLayers

Not enough input arguments.

Error in importCaffeLayers (line 71)

params = nnet.internal.cnn.caffe.CaffeModelReader.parseImportLayers(protofile, varargin{:});

Did you know what does this error mean? and how to fix it?

2. To import the layers of Caffe network I should use the following commands:

Specify the example file 'digitsnet.prototxt' to import.

protofile = 'digitsnet.prototxt';

layers = importCaffeLayers(protofile)

Can you help me on how to prepare the .prototxt file protofile that defines the network layers?

Any help will be appreciated

Answer 1

[Qi Chen]

After a little more digging, I found this post: https://www.mathworks.com/matlabcentral/answers/436583-how-to-create-multiplication-layer-in-deep-learning-toolbox.

The question of lacking a multiplication layer in Matlab was raised more than 1 year ago. I will be very surprised that such a layer still does not exist in Matlab 2020a.