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from flask import Flask, Response, request, jsonify |
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import cv2 |
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from flask_cors import CORS |
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import pytesseract |
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import numpy as np |
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import os |
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import uuid |
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from pymongo.mongo_client import MongoClient |
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from pymongo.server_api import ServerApi |
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uri = "mongodb+srv://cse443Prudhvi:pEjVbWv6oJHaHSJA@cluster0.7ournot.mongodb.net/" |
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cluster = MongoClient(uri) |
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db = cluster['cseData'] |
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collection = db['numberPlates'] |
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FRAME_WIDTH = 640 |
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FRAME_HEIGHT = 480 |
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PLATE_CASCADE = cv2.CascadeClassifier('/HGDeploy/flaskapp/haarcascade_russian_plate_number (1).xml') |
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MIN_AREA = 300 |
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COLOR = (255, 0, 255) |
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img_roi: np.ndarray = np.array([1, 2, 3]) |
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app = Flask(__name__) |
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CORS(app) |
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counter = 0 |
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def generate_frames(n): |
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cap = cv2.VideoCapture(0) |
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global img_roi |
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while cap.isOpened(): |
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success, frame = cap.read() |
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if not success: |
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break |
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else: |
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img_gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY) |
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number_plates = PLATE_CASCADE.detectMultiScale(img_gray, 1.3, 7) |
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for (x, y, w, h) in number_plates: |
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area = (w * h)+100 |
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if area > MIN_AREA: |
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cv2.rectangle(frame, (x, y), (x + w, y + h), COLOR, 2) |
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cv2.putText(frame, "License Plate", (x, y - 5), cv2.FONT_HERSHEY_COMPLEX_SMALL, 1, COLOR, 2) |
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img_roi = frame[y:y + h , x:x + w ] |
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ret, buffer = cv2.imencode('.jpg', frame) |
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frame_bytes = buffer.tobytes() |
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yield (b'--frame\r\n' |
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b'Content-Type: image/jpeg\r\n\r\n' + frame_bytes + b'\r\n') |
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@app.route('/') |
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def index(): |
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return "Hello World" |
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@app.route('/video') |
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def video(): |
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return Response(generate_frames(0), mimetype='multipart/x-mixed-replace; boundary=frame') |
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@app.route('/save', methods=['POST']) |
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def save(): |
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global counter |
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global img_roi |
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cv2.imwrite(f"/Users/prudhviraj/Documents/CSE443/img/{counter}.png", img_roi) |
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image = f"/Users/prudhviraj/Documents/CSE443/img/{counter}.png" |
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pytesseract.pytesseract.tesseract_cmd = '/opt/homebrew/bin/tesseract' |
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extracted_text = pytesseract.image_to_string(image) |
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new_text='' |
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alpha="ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
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num="0123456789" |
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for i in extracted_text: |
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if i in alpha or i in num: |
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new_text+=i |
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print(new_text) |
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print("Yes!!!!!") |
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counter += 1 |
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return new_text |
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UPLOAD_FOLDER = '/Users/prudhviraj/Documents/CSE443/img' |
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ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif'} |
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app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER |
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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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@app.route('/upload', methods=['POST']) |
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def upload_image(): |
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if 'image' not in request.files: |
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return jsonify({"error": "No image part in the request"}), 400 |
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image_file = request.files['image'] |
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if image_file.filename == '': |
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return jsonify({"error": "No selected image file"}), 400 |
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if image_file and allowed_file(image_file.filename): |
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filename = str(uuid.uuid4()) + '.' + image_file.filename.rsplit('.', 1)[1].lower() |
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filepath = os.path.join(app.config['UPLOAD_FOLDER'], filename) |
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image_file.save(filepath) |
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print(filepath) |
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frame = cv2.imread(filepath) |
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img_gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY) |
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number_plates = PLATE_CASCADE.detectMultiScale(img_gray, 1.3, 7) |
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for (x, y, w, h) in number_plates: |
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area = w * h |
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if area > MIN_AREA: |
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cv2.rectangle(frame, (x, y), (x + w, y + h), COLOR, 2) |
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cv2.putText(frame, "License Plate", (x, y - 5), cv2.FONT_HERSHEY_COMPLEX_SMALL, 1, COLOR, 2) |
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img_roi = frame[y:y + h, x:x + w] |
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pytesseract.pytesseract.tesseract_cmd = '/opt/homebrew/bin/tesseract' |
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extracted_text = pytesseract.image_to_string(img_roi) |
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new_text='' |
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alpha="ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
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num="0123456789" |
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for i in extracted_text: |
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if i in alpha or i in num: |
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new_text+=i |
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print(new_text) |
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return jsonify({"success": "Image uploaded successfully", "filename": filename}), 200 |
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else: |
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return jsonify({"error": "File type not allowed"}), 400 |
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if __name__ == '__main__': |
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app.run(debug=True) |
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