LeNet is the beginner of the convolutional neural network, and the network structure is like this.

There are three versions implement of LeNet. In Lenet.ipynb, I use keras with tensorflow as backend to implement it. In lenet_pytorch.ipynb, I use pytorch to implement it. In lenet_mxent.py, I use mxnet gluon package to implement it. It is a little bit like PyTorch.