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from torch import nn
from torchsummary import summary
class CNNetwork(nn.Module):
def __init__(self):
super().__init__()
# 4 conv blocks / flatten / linear / softmax
self.conv1 = nn.Sequential(
nn.Conv2d(
in_channels=1,
out_channels=16,
kernel_size=3,
stride=1,
padding=2
),
nn.ReLU(),
nn.MaxPool2d(kernel_size=2)
)
self.conv2 = nn.Sequential(
nn.Conv2d(
in_channels=16,
out_channels=32,
kernel_size=3,
stride=1,
padding=2
),
nn.ReLU(),
nn.MaxPool2d(kernel_size=2)
)
self.conv3 = nn.Sequential(
nn.Conv2d(
in_channels=32,
out_channels=64,
kernel_size=3,
stride=1,
padding=2
),
nn.ReLU(),
nn.MaxPool2d(kernel_size=2)
)
self.conv4 = nn.Sequential(
nn.Conv2d(
in_channels=64,
out_channels=128,
kernel_size=3,
stride=1,
padding=2
),
nn.ReLU(),
nn.MaxPool2d(kernel_size=2)
)
self.flatten = nn.Flatten()
self.linear = nn.Linear(128 * 9 * 31, 3)
self.softmax = nn.Softmax(dim=1)
def forward(self, input_data):
x = self.conv1(input_data)
x = self.conv2(x)
x = self.conv3(x)
x = self.conv4(x)
x = self.flatten(x)
logits = self.linear(x)
predictions = self.softmax(logits)
return predictions |