Update app.py

app.py

@@ -0,0 +1,25 @@
+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:
+    # Read image
+    image = Image.open(uploaded_file)
+    st.image(image, caption='Original Image', use_column_width=True)
+
+    # Convert PIL image to OpenCV format
+    img_array = np.array(image)
+    if img_array.shape[2] == 4:  # handle RGBA
+        img_array = cv2.cvtColor(img_array, cv2.COLOR_RGBA2RGB)
+
+    # Convert to grayscale
+    gray_image = cv2.cvtColor(img_array, cv2.COLOR_RGB2GRAY)
+
+    # Display the grayscale image
+    st.image(gray_image, caption='Grayscale Image', use_column_width=True, channels="GRAY")