Update app.py

app.py

@@ -7,7 +7,7 @@ import os
 
 def visualize_texture(section):
     mesh = trimesh.load('train.glb', force='mesh')
-    im = Image.open('defect.jpg').convert('RGB')
+    im = Image.open('rust_steel.png').convert('RGB')
 
     # Calculate bounds
     bounds = mesh.bounds