added code for visualizing filters

Problem 5/visualize_filters.py

@@ -0,0 +1,18 @@
+from model import ModelCT
+from matplotlib import pyplot as plt
+import torch
+
+# Pseudo code for visualizing filters, adapt as needed
+device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
+
+# Load model
+model = ModelCT()
+model.to(device)
+model.load_state_dict(torch.load("trained_model_weights.pth"))
+model.eval()
+
+# Example of loading filters from the first convolutional layer (backbone.conv1)
+weights = model.backbone.conv1.weight.data.cpu().numpy() # weights.shape = (64,1,7,7) -> 64 filters, 1 channel, size 7x7
+
+# Visualization of 21st filter from the first convolutional layer
+plt.imshow(weights[20,0,:,:], cmap='gray')