onnx export issue with the average image

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michael scheinfeild
编辑： michael scheinfeild 2019-4-17
hi i export alexnet from matlab with onnx , but i dont have same features at layers so i checked the average image.
as i see there is issue with the average image.
i tried to import the network to c++(it passed some process use python cntk to dnn) and tested with all inputs zeros but i see with subtruction layer we have not same average image !
% convnet is alexnet
AverageImage=convnet.Layers(1).AverageImage;
figure,imagesc(AverageImage(:,:,1))
while in c++ output of layer data_Sub (first subtruction layer) . when all inputs are zero i suppose it should be the negative of the average .
Capture.JPG
i also check the channels and the values if there was some mix in rgb or some rotation but there is nothing clear here.
also as i see with other frameworks( tensorflow ..) and other netwroks vgg,googlnet
there is diffrence in implementation of the deep learning net . so i dont see way to have same featurs in matlab and python and c++ . only to retrain on the images in python or c++ .

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