update gradio interface

app.py

@@ -2,6 +2,14 @@ import gradio as gr
 from classification import classify_image
 import pickle
 
+# List of example images
+examples = [
+    ["grass1.png"],
+    ["grass2.png"],
+    ["wood1.png"],
+    ["wood2.png"]
+]
+
 # Create a Gradio interface with a dropdown menu for algorithm selection
 iface = gr.Interface(
     fn=classify_image, 
@@ -12,6 +20,7 @@ iface = gr.Interface(
     outputs='text',
     title='Texture Classification',
     description='Upload an image and choose an algorithm (GLCM or LBP) for texture classification.'
+    examples=examples  # Add examples directly to the interface
 )
 
 # Launch the interface