Create app.py

app.py

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+import streamlit as st
+import cv2
+import numpy as np
+from PIL import Image
+
+st.title("Grayscale Image Converter")
+
+# Upload image
+uploaded_file = st.file_uploader("Upload an image", type=["jpg", "jpeg", "png"])
+
+if uploaded_file is not None:
+    # Convert the uploaded image to a format OpenCV can read
+    image = Image.open(uploaded_file)
+    image_np = np.array(image)
+
+    # Convert to grayscale using OpenCV
+    gray_image = cv2.cvtColor(image_np, cv2.COLOR_RGB2GRAY)
+
+    # Display the grayscale image using Streamlit
+    st.image(gray_image, caption="Grayscale Image", use_column_width=True, channels="GRAY")