add option

app.py

@@ -6,6 +6,7 @@ from rdkit import Chem
 from rdkit.Chem import Draw
 
 st.title("Image Average Pixel Calculator")
+dropdown = st.selectbox("Select a generative strategy", ("Beam Search", "Sampling", "Greedy Search"))
 uploaded_file = st.file_uploader("Upload an image", type=["png", "jpg", "jpeg"])
 if uploaded_file:
     image = Image.open(uploaded_file)