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app.py

@@ -364,6 +364,15 @@ with gr.Blocks(title="Axion - SAR to Optical") as demo:
     with gr.Row():
         with gr.Column():
             input_file = gr.File(label="Upload SAR Image", file_types=[".tif", ".tiff", ".png", ".jpg", ".jpeg"])
+            gr.HTML("""
+            <div style="font-size: 0.8rem; color: #666; padding: 8px 12px; background: rgba(255,255,255,0.03); border-radius: 6px; margin: 8px 0;">
+                <strong style="color: #888;">Input Guidelines:</strong><br>
+                • Use raw SAR imagery (single-band grayscale)<br>
+                • VV polarization preferred, VH also supported<br>
+                • Sentinel-1 GRD products work best<br>
+                • Any resolution supported (processed in 256×256 tiles)
+            </div>
+            """)
             with gr.Row():
                 overlap = gr.Slider(16, 128, value=64, step=16, label="Tile Overlap")
                 enhance = gr.Checkbox(value=True, label="Enhance Output")