src/streamlit_app.py

import streamlit as st
from PIL import Image
import io

st.set_page_config(page_title="📁 Image Preview", layout="centered")
st.title("🖼️ Image Uploader & Viewer")

# Upload image
uploaded_file = st.file_uploader("📁 Upload a JPG, JPEG, or PNG image", type=["jpg", "jpeg", "png"])

# Show image
if uploaded_file is not None:
    try:
        image = Image.open(io.BytesIO(uploaded_file.read()))
        st.image(image, caption="✅ Uploaded Image", use_column_width=True)
    except Exception as e:
        st.error("❌ Could not open image.")
        st.exception(e)
else:
    st.info("📌 Please upload an image to display it here.")