Tesseract.js

import streamlit as st

    const video = document.getElementById('video');
    const canvas = document.getElementById('canvas');
    const output = document.getElementById('output');
    const captureButton = document.getElementById('capture');

    // Access the mobile camera
    navigator.mediaDevices.getUserMedia({ video: true })
      .then(stream => {
        video.srcObject = stream;
      })
      .catch(err => {
        console.error("Error accessing the camera: ", err);
      });

    captureButton.addEventListener('click', () => {
      // Draw the video frame to the canvas
      canvas.width = video.videoWidth;
      canvas.height = video.videoHeight;
      const context = canvas.getContext('2d');
      context.drawImage(video, 0, 0, canvas.width, canvas.height);

      // Convert canvas to image data
      const dataURL = canvas.toDataURL('image/png');

      // Process the image with Tesseract
      Tesseract.recognize(
        dataURL,
        'kor',
        {
          logger: m => console.log(m)
        }
      ).then(({ data: { text } }) => {
        console.log(text);
        analyzeNutrition(text);
      });
    });

    function analyzeNutrition(text) {
      // Extract nutritional values (assuming sugar content is labeled as '당류' in Korean)
      const regex = /당류\s*:\s*(\d+(\.\d+)?)/; // This regex might need adjustments based on label format
      const match = text.match(regex);
      let outputDiv = document.getElementById('output');

      if (match) {
        const sugarContent = parseFloat(match[1]);
        let message = `Sugar content: ${sugarContent}g - `;

        if (sugarContent > 20) {
          message += 'Dangerous';
          outputDiv.className = 'red';
        } else if (sugarContent > 10) {
          message += 'Normal';
          outputDiv.className = 'yellow';
        } else {
          message += 'Good';
          outputDiv.className = 'green';
        }

        outputDiv.textContent = message;
      } else {
        outputDiv.textContent = 'Sugar content not found';
        outputDiv.className = '';
      }
    }