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requirements.txt

@@ -1 +1,2 @@
-streamlit
+streamlit-camera-input-live
+opencv-python-headless

streamlit_app.py

@@ -0,0 +1,26 @@
+import cv2
+import numpy as np
+import streamlit as st
+
+from camera_input_live import camera_input_live
+
+"# Streamlit camera input live Demo"
+"## Try holding a qr code in front of your webcam"
+
+image = camera_input_live()
+
+if image is not None:
+    st.image(image)
+    bytes_data = image.getvalue()
+    cv2_img = cv2.imdecode(np.frombuffer(bytes_data, np.uint8), cv2.IMREAD_COLOR)
+
+    detector = cv2.QRCodeDetector()
+
+    data, bbox, straight_qrcode = detector.detectAndDecode(cv2_img)
+
+    if data:
+        st.write("# Found QR code")
+        st.write(data)
+        with st.expander("Show details"):
+            st.write("BBox:", bbox)
+            st.write("Straight QR code:", straight_qrcode)