Add image uploader

app.py

@@ -1,4 +1,8 @@
 import streamlit as st
+from PIL import Image
 
-x = st.slider('Select a value')
-st.write(x, 'squared is', x * x)
+uploaded_file = st.file_uploader("Choose an image...", type="jpg")
+
+if uploaded_file is not None:
+    image = Image.open(uploaded_file)
+    st.image(image, caption='Uploaded Image.', use_column_width=True)