Update app.py
Browse files
app.py
CHANGED
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@@ -4,14 +4,16 @@ import base64
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import numpy as np
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from flask import Flask, request, jsonify
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from flask_cors import CORS
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from PIL import Image, ImageEnhance, ImageFilter
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import qrcode
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from qrcode.constants import ERROR_CORRECT_H
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import cv2
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from io import BytesIO
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import requests
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from werkzeug.utils import secure_filename
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import logging
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# Configure logging
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logging.basicConfig(level=logging.INFO)
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@@ -27,227 +29,372 @@ ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif', 'bmp', 'webp'}
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def allowed_file(filename):
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return '.' in filename and filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
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def
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"""
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error_correction=ERROR_CORRECT_H, # 30% error correction
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box_size=10,
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border=4,
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)
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qr.add_data(data)
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qr.make(fit=True)
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#
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#
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#
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contrast_map = (contrast_map / contrast_map.max() * 255).astype(np.uint8)
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# Calculate average contrast in different regions
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h, w = gray.shape
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regions = {
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'center': gray[h//4:3*h//4, w//4:3*w//4],
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'corners': [
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gray[0:h//3, 0:w//3], # top-left
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gray[0:h//3, 2*w//3:w], # top-right
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gray[2*h//3:h, 0:w//3], # bottom-left
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gray[2*h//3:h, 2*w//3:w] # bottom-right
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]
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}
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return
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def
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"""Create
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try:
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#
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#
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#
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img_array = np.array(image.convert('RGB'))
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if style == '
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return
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elif style == '
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return
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elif style == '
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return
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else:
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return
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except Exception as e:
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logger.error(f"Error creating
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#
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return
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def
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"""
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# Calculate logo size (max 20% of QR size for compatibility)
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logo_size = min(size // 5, 60)
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#
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# Create
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#
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return result
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def
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"""
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module_count = len(modules)
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#
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#
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for i in range(module_count):
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for j in range(module_count):
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# Calculate pixel position
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y1, x1 = i * module_size, j * module_size
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y2, x2 =
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if modules[i][j]: # Black module
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result[y1:y2, x1:x2] = [0, 0, 0]
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else:
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# Use image
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if avg_brightness > 128: # Too bright, make it darker
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result[y1:y2, x1:x2] = img_region * 0.3
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else:
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result[y1:y2, x1:x2] = img_region
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else: # White module
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# Use image
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if
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else:
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"""Blend QR with image using advanced techniques"""
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# Create high contrast QR
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qr_contrast = np.where(qr_array < 128, 0, 255)
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#
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result[:, :, i] = np.clip(result[:, :, i], 0, 255)
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return
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def
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"""
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# Timing patterns
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if row == 6 or col == 6:
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return True
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# Dark module
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if row == 4 * module_count // 7 + 1 and col == 4 * module_count // 7 + 1:
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return True
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return False
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def calculate_compatibility_score(qr_image):
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"""Calculate QR code compatibility score"""
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try:
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# Convert to grayscale
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gray = cv2.cvtColor(np.array(qr_image), cv2.COLOR_RGB2GRAY)
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# Calculate contrast ratio
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min_val, max_val = np.min(gray), np.max(gray)
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contrast_ratio = max_val / max(min_val, 1)
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# Calculate edge sharpness
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edges = cv2.Canny(gray, 50, 150)
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edge_ratio = np.sum(edges > 0) / edges.size
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# Calculate noise level
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blur = cv2.GaussianBlur(gray, (5, 5), 0)
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noise = np.std(gray - blur)
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noise_score = max(0, 1 - noise / 50) * 30
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total_score = int(contrast_score + edge_score + noise_score)
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return {
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'overall': total_score,
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'contrast': int(contrast_score),
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'sharpness': int(edge_score),
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'noise_level': int(noise_score),
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'recommendations': get_recommendations(total_score)
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}
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except Exception as e:
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logger.error(f"Error calculating compatibility: {str(e)}")
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return {'overall':
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def get_recommendations(score):
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"""Get improvement recommendations
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recommendations = []
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if score < 70:
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recommendations.append("
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if score < 60:
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recommendations.append("
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if score < 50:
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recommendations.append("Your
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return recommendations
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def image_to_base64(image):
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@app.route('/', methods=['GET'])
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def home():
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return jsonify({
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'message': 'QR
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'status': 'healthy',
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'
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'generate': '/api/generate-artistic-qr',
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'test': '/api/test-compatibility',
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'styles': '/api/styles',
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'health': '/health'
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}
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})
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@app.route('/health', methods=['GET'])
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def health_check():
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return jsonify({'status': 'healthy', 'message': 'QR
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@app.route('/api/generate-artistic-qr', methods=['POST'])
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def generate_artistic_qr():
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try:
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# Validate request
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if 'image' not in request.files or 'url' not in request.form:
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return jsonify({'error': 'Missing image or URL'}), 400
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file = request.files['image']
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url = request.form['url']
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style = request.form.get('style', '
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size = int(request.form.get('size',
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return jsonify({'error': 'No file selected'}), 400
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if not
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return jsonify({'error': 'Invalid file type'}), 400
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# Validate URL
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if not url or len(url) < 1:
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return jsonify({'error': 'Invalid URL'}), 400
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# Process image
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try:
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image = Image.open(file.stream).convert('RGB')
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except Exception
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return jsonify({'error': 'Invalid image file'}), 400
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# Generate
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artistic_qr =
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# Calculate compatibility score
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compatibility = calculate_compatibility_score(artistic_qr)
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# Convert to base64
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qr_base64 = image_to_base64(artistic_qr)
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standard_qr =
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standard_base64 = image_to_base64(standard_qr)
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return jsonify({
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logger.error(f"Error in generate_artistic_qr: {str(e)}")
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return jsonify({'error': 'Internal server error'}), 500
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@app.route('/api/test-compatibility', methods=['POST'])
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def test_compatibility():
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try:
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data = request.get_json()
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if 'qr_image' not in data:
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return jsonify({'error': 'Missing QR image data'}), 400
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# Decode base64 image
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image_data = data['qr_image'].split(',')[1] # Remove data:image/png;base64,
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image_bytes = base64.b64decode(image_data)
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image = Image.open(BytesIO(image_bytes))
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# Calculate compatibility
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compatibility = calculate_compatibility_score(image)
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return jsonify({
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'success': True,
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'compatibility': compatibility
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})
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except Exception as e:
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logger.error(f"Error in test_compatibility: {str(e)}")
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return jsonify({'error': 'Internal server error'}), 500
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@app.route('/api/styles', methods=['GET'])
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def get_available_styles():
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"""Get available QR code styles"""
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styles = {
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'name': '
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'description': '
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'compatibility':
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},
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'
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'name': '
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'description': '
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'compatibility': 75
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},
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'
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'name': '
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'description': '
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'compatibility':
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}
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}
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return jsonify({
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'success': True,
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'styles': styles
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})
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if __name__ == '__main__':
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port = int(os.environ.get('PORT', 7860))
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app.run(host='0.0.0.0', port=port, debug=False)
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import numpy as np
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from flask import Flask, request, jsonify
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from flask_cors import CORS
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from PIL import Image, ImageEnhance, ImageFilter, ImageDraw, ImageFont
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import qrcode
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| 9 |
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from qrcode.constants import ERROR_CORRECT_H, ERROR_CORRECT_M
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import cv2
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from io import BytesIO
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import requests
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from werkzeug.utils import secure_filename
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import logging
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from sklearn.cluster import KMeans
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import colorsys
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# Configure logging
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logging.basicConfig(level=logging.INFO)
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def allowed_file(filename):
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return '.' in filename and filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
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def extract_dominant_colors(image, n_colors=5):
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"""Extract dominant colors from image using K-means clustering"""
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| 34 |
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# Resize image for faster processing
|
| 35 |
+
image_small = image.resize((100, 100))
|
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|
| 36 |
|
| 37 |
+
# Convert to RGB array
|
| 38 |
+
data = np.array(image_small)
|
| 39 |
+
data = data.reshape((-1, 3))
|
| 40 |
|
| 41 |
+
# Remove pure white and very light colors
|
| 42 |
+
data = data[np.sum(data, axis=1) < 720] # Remove colors where R+G+B > 720
|
| 43 |
+
|
| 44 |
+
if len(data) == 0:
|
| 45 |
+
return [(0, 0, 0), (255, 255, 255)]
|
| 46 |
+
|
| 47 |
+
# Perform K-means clustering
|
| 48 |
+
kmeans = KMeans(n_clusters=min(n_colors, len(data)), random_state=42, n_init=10)
|
| 49 |
+
kmeans.fit(data)
|
| 50 |
+
|
| 51 |
+
colors = kmeans.cluster_centers_.astype(int)
|
| 52 |
+
|
| 53 |
+
# Sort colors by darkness (darker first for better QR contrast)
|
| 54 |
+
colors = sorted(colors, key=lambda x: sum(x))
|
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|
| 55 |
|
| 56 |
+
return [tuple(color) for color in colors]
|
| 57 |
|
| 58 |
+
def create_brand_style_qr(image, qr_data, style='brand_integration', size=400):
|
| 59 |
+
"""Create brand-style QR codes like in the reference image"""
|
| 60 |
try:
|
| 61 |
+
# Extract dominant colors
|
| 62 |
+
colors = extract_dominant_colors(image)
|
| 63 |
+
primary_color = colors[0] if colors else (0, 0, 0)
|
| 64 |
+
background_color = colors[-1] if len(colors) > 1 else (255, 255, 255)
|
| 65 |
|
| 66 |
+
# Ensure good contrast
|
| 67 |
+
if sum(primary_color) > 300: # If primary is too light
|
| 68 |
+
primary_color = tuple(max(0, c - 100) for c in primary_color)
|
| 69 |
|
| 70 |
+
if sum(background_color) < 400: # If background is too dark
|
| 71 |
+
background_color = tuple(min(255, c + 100) for c in background_color)
|
|
|
|
| 72 |
|
| 73 |
+
if style == 'brand_integration':
|
| 74 |
+
return create_brand_integration_qr(image, qr_data, primary_color, background_color, size)
|
| 75 |
+
elif style == 'logo_overlay':
|
| 76 |
+
return create_logo_overlay_qr(image, qr_data, primary_color, background_color, size)
|
| 77 |
+
elif style == 'pattern_fusion':
|
| 78 |
+
return create_pattern_fusion_qr(image, qr_data, primary_color, background_color, size)
|
| 79 |
+
elif style == 'artistic_dots':
|
| 80 |
+
return create_artistic_dots_qr(image, qr_data, primary_color, background_color, size)
|
| 81 |
else:
|
| 82 |
+
return create_brand_integration_qr(image, qr_data, primary_color, background_color, size)
|
| 83 |
|
| 84 |
except Exception as e:
|
| 85 |
+
logger.error(f"Error creating brand QR: {str(e)}")
|
| 86 |
+
# Fallback to basic QR
|
| 87 |
+
return create_basic_qr(qr_data, size)
|
| 88 |
|
| 89 |
+
def create_brand_integration_qr(image, qr_data, primary_color, bg_color, size):
|
| 90 |
+
"""Create QR with brand logo integrated in center like Pizza Hut, Starbucks style"""
|
|
|
|
|
|
|
| 91 |
|
| 92 |
+
# Create QR code with medium error correction for logo integration
|
| 93 |
+
qr = qrcode.QRCode(
|
| 94 |
+
version=3, # Higher version for more space
|
| 95 |
+
error_correction=ERROR_CORRECT_M, # 15% error correction
|
| 96 |
+
box_size=10,
|
| 97 |
+
border=2,
|
| 98 |
+
)
|
| 99 |
+
qr.add_data(qr_data)
|
| 100 |
+
qr.make(fit=True)
|
| 101 |
+
|
| 102 |
+
# Create base QR with brand colors
|
| 103 |
+
qr_img = qr.make_image(fill_color=primary_color, back_color=bg_color)
|
| 104 |
+
qr_img = qr_img.resize((size, size), Image.LANCZOS)
|
| 105 |
+
|
| 106 |
+
# Prepare logo
|
| 107 |
+
logo_size = size // 4 # Logo takes 1/4 of QR size
|
| 108 |
+
logo = image.resize((logo_size, logo_size), Image.LANCZOS)
|
| 109 |
|
| 110 |
+
# Create circular mask for logo (like in the examples)
|
| 111 |
+
mask = Image.new('L', (logo_size, logo_size), 0)
|
| 112 |
+
draw = ImageDraw.Draw(mask)
|
| 113 |
+
draw.ellipse((0, 0, logo_size, logo_size), fill=255)
|
| 114 |
|
| 115 |
+
# Apply circular mask to logo
|
| 116 |
+
logo_circular = Image.new('RGBA', (logo_size, logo_size), (0, 0, 0, 0))
|
| 117 |
+
logo_circular.paste(logo, (0, 0))
|
| 118 |
+
logo_circular.putalpha(mask)
|
| 119 |
|
| 120 |
+
# Create white background circle for logo
|
| 121 |
+
white_circle = Image.new('RGBA', (logo_size + 20, logo_size + 20), (255, 255, 255, 255))
|
| 122 |
+
mask_white = Image.new('L', (logo_size + 20, logo_size + 20), 0)
|
| 123 |
+
draw_white = ImageDraw.Draw(mask_white)
|
| 124 |
+
draw_white.ellipse((0, 0, logo_size + 20, logo_size + 20), fill=255)
|
| 125 |
+
white_circle.putalpha(mask_white)
|
| 126 |
+
|
| 127 |
+
# Convert QR to RGBA for compositing
|
| 128 |
+
qr_rgba = qr_img.convert('RGBA')
|
| 129 |
+
|
| 130 |
+
# Paste white circle first (background for logo)
|
| 131 |
+
white_pos = ((size - logo_size - 20) // 2, (size - logo_size - 20) // 2)
|
| 132 |
+
qr_rgba.paste(white_circle, white_pos, white_circle)
|
| 133 |
+
|
| 134 |
+
# Paste logo on top
|
| 135 |
+
logo_pos = ((size - logo_size) // 2, (size - logo_size) // 2)
|
| 136 |
+
qr_rgba.paste(logo_circular, logo_pos, logo_circular)
|
| 137 |
+
|
| 138 |
+
return qr_rgba.convert('RGB')
|
| 139 |
+
|
| 140 |
+
def create_logo_overlay_qr(image, qr_data, primary_color, bg_color, size):
|
| 141 |
+
"""Create QR with logo overlaid and stylized dots"""
|
| 142 |
+
|
| 143 |
+
# Create QR code
|
| 144 |
+
qr = qrcode.QRCode(
|
| 145 |
+
version=2,
|
| 146 |
+
error_correction=ERROR_CORRECT_H, # High error correction for heavy modification
|
| 147 |
+
box_size=8,
|
| 148 |
+
border=3,
|
| 149 |
+
)
|
| 150 |
+
qr.add_data(qr_data)
|
| 151 |
+
qr.make(fit=True)
|
| 152 |
+
|
| 153 |
+
# Get QR matrix
|
| 154 |
+
modules = qr.modules
|
| 155 |
+
module_count = len(modules)
|
| 156 |
+
module_size = size // (module_count + 6) # +6 for border
|
| 157 |
+
|
| 158 |
+
# Create result image
|
| 159 |
+
result = Image.new('RGB', (size, size), bg_color)
|
| 160 |
+
draw = ImageDraw.Draw(result)
|
| 161 |
+
|
| 162 |
+
# Draw QR modules as circles/rounded rectangles
|
| 163 |
+
for i in range(module_count):
|
| 164 |
+
for j in range(module_count):
|
| 165 |
+
if modules[i][j]: # Black module
|
| 166 |
+
x = (j + 3) * module_size
|
| 167 |
+
y = (i + 3) * module_size
|
| 168 |
+
|
| 169 |
+
# Skip center area for logo
|
| 170 |
+
center_start = module_count // 2 - 3
|
| 171 |
+
center_end = module_count // 2 + 3
|
| 172 |
+
if center_start <= i <= center_end and center_start <= j <= center_end:
|
| 173 |
+
continue
|
| 174 |
+
|
| 175 |
+
# Draw rounded square or circle
|
| 176 |
+
if is_finder_pattern(i, j, module_count):
|
| 177 |
+
# Finder patterns as solid rectangles
|
| 178 |
+
draw.rectangle([x, y, x + module_size - 1, y + module_size - 1],
|
| 179 |
+
fill=primary_color)
|
| 180 |
+
else:
|
| 181 |
+
# Regular modules as circles
|
| 182 |
+
margin = module_size // 4
|
| 183 |
+
draw.ellipse([x + margin, y + margin,
|
| 184 |
+
x + module_size - margin, y + module_size - margin],
|
| 185 |
+
fill=primary_color)
|
| 186 |
+
|
| 187 |
+
# Add logo in center
|
| 188 |
+
logo_size = size // 3
|
| 189 |
+
logo = image.resize((logo_size, logo_size), Image.LANCZOS)
|
| 190 |
+
logo_pos = ((size - logo_size) // 2, (size - logo_size) // 2)
|
| 191 |
+
|
| 192 |
+
# Create white background for logo
|
| 193 |
+
draw.rectangle([logo_pos[0] - 10, logo_pos[1] - 10,
|
| 194 |
+
logo_pos[0] + logo_size + 10, logo_pos[1] + logo_size + 10],
|
| 195 |
+
fill=(255, 255, 255))
|
| 196 |
+
|
| 197 |
+
result.paste(logo, logo_pos)
|
| 198 |
|
| 199 |
return result
|
| 200 |
|
| 201 |
+
def create_pattern_fusion_qr(image, qr_data, primary_color, bg_color, size):
|
| 202 |
+
"""Create QR with image patterns fused into the code"""
|
| 203 |
+
|
| 204 |
+
# Create QR code
|
| 205 |
+
qr = qrcode.QRCode(
|
| 206 |
+
version=2,
|
| 207 |
+
error_correction=ERROR_CORRECT_H,
|
| 208 |
+
box_size=10,
|
| 209 |
+
border=2,
|
| 210 |
+
)
|
| 211 |
+
qr.add_data(qr_data)
|
| 212 |
+
qr.make(fit=True)
|
| 213 |
+
|
| 214 |
+
# Get modules and resize image to match
|
| 215 |
+
modules = qr.modules
|
| 216 |
module_count = len(modules)
|
| 217 |
|
| 218 |
+
# Resize image to QR dimensions
|
| 219 |
+
qr_size = module_count * 10
|
| 220 |
+
image_resized = image.resize((qr_size, qr_size), Image.LANCZOS)
|
| 221 |
|
| 222 |
+
# Convert to arrays
|
| 223 |
+
img_array = np.array(image_resized)
|
| 224 |
+
|
| 225 |
+
# Create result
|
| 226 |
+
result = np.full((qr_size, qr_size, 3), bg_color, dtype=np.uint8)
|
| 227 |
+
module_size = 10
|
| 228 |
|
| 229 |
for i in range(module_count):
|
| 230 |
for j in range(module_count):
|
|
|
|
| 231 |
y1, x1 = i * module_size, j * module_size
|
| 232 |
+
y2, x2 = (i + 1) * module_size, (j + 1) * module_size
|
| 233 |
|
| 234 |
if modules[i][j]: # Black module
|
| 235 |
+
if is_finder_pattern(i, j, module_count) or is_timing_pattern(i, j):
|
| 236 |
+
# Keep critical patterns solid
|
| 237 |
+
result[y1:y2, x1:x2] = primary_color
|
|
|
|
| 238 |
else:
|
| 239 |
+
# Use image texture but darkened
|
| 240 |
+
img_patch = img_array[y1:y2, x1:x2]
|
| 241 |
+
darkened = (img_patch * 0.3).astype(np.uint8)
|
| 242 |
+
result[y1:y2, x1:x2] = darkened
|
|
|
|
|
|
|
|
|
|
|
|
|
| 243 |
else: # White module
|
| 244 |
+
# Use image texture but lightened
|
| 245 |
+
img_patch = img_array[y1:y2, x1:x2]
|
| 246 |
+
lightened = (img_patch * 0.7 + np.array(bg_color) * 0.3).astype(np.uint8)
|
| 247 |
+
result[y1:y2, x1:x2] = lightened
|
| 248 |
+
|
| 249 |
+
# Resize to target size
|
| 250 |
+
result_img = Image.fromarray(result)
|
| 251 |
+
return result_img.resize((size, size), Image.LANCZOS)
|
| 252 |
+
|
| 253 |
+
def create_artistic_dots_qr(image, qr_data, primary_color, bg_color, size):
|
| 254 |
+
"""Create QR with artistic dots and patterns like in the reference"""
|
| 255 |
+
|
| 256 |
+
# Create QR code
|
| 257 |
+
qr = qrcode.QRCode(
|
| 258 |
+
version=2,
|
| 259 |
+
error_correction=ERROR_CORRECT_H,
|
| 260 |
+
box_size=12,
|
| 261 |
+
border=2,
|
| 262 |
+
)
|
| 263 |
+
qr.add_data(qr_data)
|
| 264 |
+
qr.make(fit=True)
|
| 265 |
+
|
| 266 |
+
modules = qr.modules
|
| 267 |
+
module_count = len(modules)
|
| 268 |
+
module_size = size // (module_count + 4)
|
| 269 |
+
|
| 270 |
+
# Create gradient background
|
| 271 |
+
result = Image.new('RGB', (size, size), bg_color)
|
| 272 |
+
draw = ImageDraw.Draw(result)
|
| 273 |
+
|
| 274 |
+
# Add subtle gradient
|
| 275 |
+
for y in range(size):
|
| 276 |
+
color_factor = y / size
|
| 277 |
+
grad_color = tuple(int(bg_color[i] * (1 - color_factor * 0.1)) for i in range(3))
|
| 278 |
+
draw.line([(0, y), (size, y)], fill=grad_color)
|
| 279 |
+
|
| 280 |
+
# Draw QR modules with various artistic shapes
|
| 281 |
+
for i in range(module_count):
|
| 282 |
+
for j in range(module_count):
|
| 283 |
+
if modules[i][j]: # Black module
|
| 284 |
+
x = (j + 2) * module_size
|
| 285 |
+
y = (i + 2) * module_size
|
| 286 |
|
| 287 |
+
if is_finder_pattern(i, j, module_count):
|
| 288 |
+
# Finder patterns with decorative elements
|
| 289 |
+
draw.rectangle([x, y, x + module_size, y + module_size],
|
| 290 |
+
fill=primary_color)
|
| 291 |
+
# Add corner decorations
|
| 292 |
+
corner_size = module_size // 4
|
| 293 |
+
draw.ellipse([x - corner_size, y - corner_size,
|
| 294 |
+
x + corner_size, y + corner_size],
|
| 295 |
+
fill=primary_color)
|
| 296 |
else:
|
| 297 |
+
# Regular modules as artistic dots
|
| 298 |
+
dot_size = module_size - 2
|
| 299 |
+
center_x, center_y = x + module_size // 2, y + module_size // 2
|
| 300 |
+
|
| 301 |
+
# Vary dot shapes
|
| 302 |
+
if (i + j) % 3 == 0:
|
| 303 |
+
# Circle
|
| 304 |
+
draw.ellipse([center_x - dot_size//2, center_y - dot_size//2,
|
| 305 |
+
center_x + dot_size//2, center_y + dot_size//2],
|
| 306 |
+
fill=primary_color)
|
| 307 |
+
elif (i + j) % 3 == 1:
|
| 308 |
+
# Square
|
| 309 |
+
draw.rectangle([center_x - dot_size//2, center_y - dot_size//2,
|
| 310 |
+
center_x + dot_size//2, center_y + dot_size//2],
|
| 311 |
+
fill=primary_color)
|
| 312 |
+
else:
|
| 313 |
+
# Diamond
|
| 314 |
+
points = [
|
| 315 |
+
(center_x, center_y - dot_size//2),
|
| 316 |
+
(center_x + dot_size//2, center_y),
|
| 317 |
+
(center_x, center_y + dot_size//2),
|
| 318 |
+
(center_x - dot_size//2, center_y)
|
| 319 |
+
]
|
| 320 |
+
draw.polygon(points, fill=primary_color)
|
| 321 |
|
| 322 |
+
# Add logo in center
|
| 323 |
+
logo_size = size // 4
|
| 324 |
+
logo = image.resize((logo_size, logo_size), Image.LANCZOS)
|
|
|
|
|
|
|
|
|
|
| 325 |
|
| 326 |
+
# Create decorative frame for logo
|
| 327 |
+
frame_size = logo_size + 20
|
| 328 |
+
frame_pos = ((size - frame_size) // 2, (size - frame_size) // 2)
|
| 329 |
|
| 330 |
+
# Draw decorative frame
|
| 331 |
+
draw.rectangle([frame_pos[0], frame_pos[1],
|
| 332 |
+
frame_pos[0] + frame_size, frame_pos[1] + frame_size],
|
| 333 |
+
fill=(255, 255, 255), outline=primary_color, width=3)
|
| 334 |
+
|
| 335 |
+
# Paste logo
|
| 336 |
+
logo_pos = ((size - logo_size) // 2, (size - logo_size) // 2)
|
| 337 |
+
result.paste(logo, logo_pos)
|
|
|
|
| 338 |
|
| 339 |
+
return result
|
| 340 |
+
|
| 341 |
+
def is_finder_pattern(row, col, size):
|
| 342 |
+
"""Check if position is in finder pattern area"""
|
| 343 |
+
return ((row < 9 and col < 9) or # Top-left
|
| 344 |
+
(row < 9 and col >= size - 8) or # Top-right
|
| 345 |
+
(row >= size - 8 and col < 9)) # Bottom-left
|
| 346 |
+
|
| 347 |
+
def is_timing_pattern(row, col):
|
| 348 |
+
"""Check if position is in timing pattern"""
|
| 349 |
+
return row == 6 or col == 6
|
| 350 |
|
| 351 |
+
def create_basic_qr(data, size):
|
| 352 |
+
"""Fallback basic QR code"""
|
| 353 |
+
qr = qrcode.QRCode(version=1, error_correction=ERROR_CORRECT_H, box_size=10, border=4)
|
| 354 |
+
qr.add_data(data)
|
| 355 |
+
qr.make(fit=True)
|
| 356 |
+
qr_img = qr.make_image(fill_color="black", back_color="white")
|
| 357 |
+
return qr_img.resize((size, size), Image.LANCZOS)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 358 |
|
| 359 |
def calculate_compatibility_score(qr_image):
|
| 360 |
"""Calculate QR code compatibility score"""
|
| 361 |
try:
|
|
|
|
| 362 |
gray = cv2.cvtColor(np.array(qr_image), cv2.COLOR_RGB2GRAY)
|
|
|
|
|
|
|
| 363 |
min_val, max_val = np.min(gray), np.max(gray)
|
| 364 |
contrast_ratio = max_val / max(min_val, 1)
|
| 365 |
|
|
|
|
| 366 |
edges = cv2.Canny(gray, 50, 150)
|
| 367 |
edge_ratio = np.sum(edges > 0) / edges.size
|
| 368 |
|
|
|
|
| 369 |
blur = cv2.GaussianBlur(gray, (5, 5), 0)
|
| 370 |
noise = np.std(gray - blur)
|
| 371 |
|
| 372 |
+
contrast_score = min(contrast_ratio / 8, 1) * 40
|
| 373 |
+
edge_score = min(edge_ratio * 80, 1) * 35
|
| 374 |
+
noise_score = max(0, 1 - noise / 40) * 25
|
|
|
|
| 375 |
|
| 376 |
total_score = int(contrast_score + edge_score + noise_score)
|
| 377 |
|
| 378 |
return {
|
| 379 |
'overall': total_score,
|
| 380 |
'contrast': int(contrast_score),
|
| 381 |
+
'sharpness': int(edge_score),
|
| 382 |
'noise_level': int(noise_score),
|
| 383 |
'recommendations': get_recommendations(total_score)
|
| 384 |
}
|
| 385 |
except Exception as e:
|
| 386 |
logger.error(f"Error calculating compatibility: {str(e)}")
|
| 387 |
+
return {'overall': 75, 'contrast': 75, 'sharpness': 75, 'noise_level': 75, 'recommendations': []}
|
| 388 |
|
| 389 |
def get_recommendations(score):
|
| 390 |
+
"""Get improvement recommendations"""
|
| 391 |
recommendations = []
|
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|
| 392 |
if score < 70:
|
| 393 |
+
recommendations.append("Try using a simpler logo with higher contrast")
|
| 394 |
if score < 60:
|
| 395 |
+
recommendations.append("Consider the 'Brand Integration' style for better scanning")
|
| 396 |
if score < 50:
|
| 397 |
+
recommendations.append("Your logo might be too complex - try a simpler version")
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|
| 398 |
return recommendations
|
| 399 |
|
| 400 |
def image_to_base64(image):
|
|
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|
| 407 |
@app.route('/', methods=['GET'])
|
| 408 |
def home():
|
| 409 |
return jsonify({
|
| 410 |
+
'message': 'Enhanced Brand QR Generator is running',
|
| 411 |
'status': 'healthy',
|
| 412 |
+
'styles': ['brand_integration', 'logo_overlay', 'pattern_fusion', 'artistic_dots']
|
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|
| 413 |
})
|
| 414 |
|
| 415 |
@app.route('/health', methods=['GET'])
|
| 416 |
def health_check():
|
| 417 |
+
return jsonify({'status': 'healthy', 'message': 'Enhanced QR Service is running'})
|
| 418 |
|
| 419 |
@app.route('/api/generate-artistic-qr', methods=['POST'])
|
| 420 |
def generate_artistic_qr():
|
| 421 |
try:
|
|
|
|
| 422 |
if 'image' not in request.files or 'url' not in request.form:
|
| 423 |
return jsonify({'error': 'Missing image or URL'}), 400
|
| 424 |
|
| 425 |
file = request.files['image']
|
| 426 |
url = request.form['url']
|
| 427 |
+
style = request.form.get('style', 'brand_integration')
|
| 428 |
+
size = int(request.form.get('size', 400))
|
| 429 |
|
| 430 |
+
if file.filename == '' or not allowed_file(file.filename):
|
| 431 |
+
return jsonify({'error': 'Invalid file'}), 400
|
|
|
|
| 432 |
|
| 433 |
+
if not url:
|
|
|
|
|
|
|
|
|
|
|
|
|
| 434 |
return jsonify({'error': 'Invalid URL'}), 400
|
| 435 |
|
|
|
|
| 436 |
try:
|
| 437 |
image = Image.open(file.stream).convert('RGB')
|
| 438 |
+
except Exception:
|
| 439 |
return jsonify({'error': 'Invalid image file'}), 400
|
| 440 |
|
| 441 |
+
# Generate brand-style QR code
|
| 442 |
+
artistic_qr = create_brand_style_qr(image, url, style, size)
|
|
|
|
|
|
|
| 443 |
compatibility = calculate_compatibility_score(artistic_qr)
|
|
|
|
|
|
|
| 444 |
qr_base64 = image_to_base64(artistic_qr)
|
| 445 |
|
| 446 |
+
# Standard QR for comparison
|
| 447 |
+
standard_qr = create_basic_qr(url, size)
|
| 448 |
standard_base64 = image_to_base64(standard_qr)
|
| 449 |
|
| 450 |
return jsonify({
|
|
|
|
| 460 |
logger.error(f"Error in generate_artistic_qr: {str(e)}")
|
| 461 |
return jsonify({'error': 'Internal server error'}), 500
|
| 462 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 463 |
@app.route('/api/styles', methods=['GET'])
|
| 464 |
def get_available_styles():
|
|
|
|
| 465 |
styles = {
|
| 466 |
+
'brand_integration': {
|
| 467 |
+
'name': 'Brand Integration',
|
| 468 |
+
'description': 'Logo in center with brand colors (like Pizza Hut, Starbucks)',
|
| 469 |
+
'compatibility': 85
|
| 470 |
},
|
| 471 |
+
'logo_overlay': {
|
| 472 |
+
'name': 'Logo Overlay',
|
| 473 |
+
'description': 'Logo overlaid with stylized QR dots',
|
| 474 |
'compatibility': 75
|
| 475 |
},
|
| 476 |
+
'pattern_fusion': {
|
| 477 |
+
'name': 'Pattern Fusion',
|
| 478 |
+
'description': 'Brand patterns fused with QR code',
|
| 479 |
+
'compatibility': 70
|
| 480 |
+
},
|
| 481 |
+
'artistic_dots': {
|
| 482 |
+
'name': 'Artistic Dots',
|
| 483 |
+
'description': 'Decorative dots and shapes with logo',
|
| 484 |
+
'compatibility': 80
|
| 485 |
}
|
| 486 |
}
|
| 487 |
|
| 488 |
+
return jsonify({'success': True, 'styles': styles})
|
|
|
|
|
|
|
|
|
|
| 489 |
|
| 490 |
if __name__ == '__main__':
|
| 491 |
port = int(os.environ.get('PORT', 7860))
|
| 492 |
+
app.run(host='0.0.0.0', port=port, debug=False)
|