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import streamlit as st | |
import cv2 | |
import numpy as np | |
import datetime | |
import os | |
import time | |
from camera_input_live import camera_input_live | |
def save_image(image): | |
# Generate a timestamped filename | |
timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S") | |
filename = f"captured_image_{timestamp}.png" | |
# Convert the image to OpenCV format and save | |
bytes_data = image.getvalue() | |
cv2_img = cv2.imdecode(np.frombuffer(bytes_data, np.uint8), cv2.IMREAD_COLOR) | |
cv2.imwrite(filename, cv2_img) | |
return filename | |
def main(): | |
st.title("Streamlit Camera Input Live Demo") | |
st.header("Try holding a QR code in front of your webcam") | |
# Sidebar for captured images | |
st.sidebar.markdown("## Captured Images") | |
captured_images = [] | |
# Initialize session state | |
if 'last_captured' not in st.session_state: | |
st.session_state['last_captured'] = time.time() | |
while True: | |
image = camera_input_live() | |
if image is not None: | |
st.image(image) | |
# Save image every 5 seconds | |
if time.time() - st.session_state['last_captured'] > 5: | |
filename = save_image(image) | |
captured_images.append(filename) | |
st.session_state['last_captured'] = time.time() | |
# Update sidebar | |
for img_file in captured_images: | |
st.sidebar.markdown(f"- [{img_file}](./{img_file})") | |
# QR Code Detection | |
detector = cv2.QRCodeDetector() | |
bytes_data = image.getvalue() | |
cv2_img = cv2.imdecode(np.frombuffer(bytes_data, np.uint8), cv2.IMREAD_COLOR) | |
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) | |
time.sleep(0.1) # Add a short delay to reduce CPU usage | |
if __name__ == "__main__": | |
main() | |