
Fechado
Publicado
Pago na entrega
I need a custom OCR engine that can read vehicle license plates and container codes directly from photos or video frames. The system must accurately extract the complete alphanumeric sequence—letters and numbers—and return it as plain text and insert it into the system's database. The system must be delivered ready and compiled for future installations on Windows. Desired Knowledge: The minimum knowledge to get this system (Node.js backend, Python OCR worker, React frontend, PostgreSQL, Docker) up and running. Backend (minimum) Basic Node.js: installing dependencies (npm), running scripts (npm start). Express: understanding routes, middlewares, body parsing. JWT and bcrypt: simple authentication and password hashing. Basic PostgreSQL and SQL: creating a database, running [login to view URL], connecting via connection string. Basic .env knowledge: configuring environment variables (DATABASE_URL, JWT_SECRET, UPLOAD_DIR). Worker OCR (minimum) Basic Python: creating an environment (venv), installing packages (pip). OpenCV and pytesseract: installing and running frame reading; understanding Tesseract's native dependencies. psycopg2: Connect and insert records into Postgres. File handling: Save images to disk (UPLOAD_DIR). Frontend (minimum) Node.js/NPM to execute React build/dev. Basic React: Components, state, routing (react-router). Axios/HTTP: API calls with Authorization header (Bearer token). Basic HTML/CSS to execute/adjust the interface. Infrastructure and operation (minimum) Docker and docker-compose: Build images and deploy the stack with `docker compose up --build`. Basic local networking: Private IPs, LAN subnets; adjust `ALLOWED_LAN_CIDR` and Nginx bind (if used). File and volume permissions: Ensure the container/host can read/write UPLOAD_DIR. Basic firewall (ufw/iptables) to restrict LAN access (optional but recommended). Operational security (minimum) Manage secrets: edit .env with strong JWT_SECRET; do not leave secrets public. Secure DB access: use strong passwords in DATABASE_URL. Limit exposure: do not publish ports publicly; use internal Docker network or bind to LAN IP. Testing and debugging (minimum) Logs: read Docker logs (docker compose logs backend/worker) for troubleshooting. HTTP tools: use curl / Postman to test endpoints (/auth/login, /cameras, /events). Video testing: know how to use a local video file as an RTSP source to test the worker. Acceptance Criteria • ≥ 95% character-level accuracy on a blind validation set that I will provide • Correct ordering of mixed letters/numbers (e.g., ABC-1234, MSCU1234567) • Processing time less than 500 ms per 1080p image on a standard i7 CPU A first demonstration should inform me what is realistically feasible. I have a lot in mind and written about the project.
ID do Projeto: 39980841
60 propostas
Projeto remoto
Ativo há 2 meses
Defina seu orçamento e seu prazo
Seja pago pelo seu trabalho
Descreva sua proposta
É grátis para se inscrever e fazer ofertas em trabalhos
60 freelancers estão ofertando em média $465 USD for esse trabalho

Hi there, I'm excited to help you develop a custom OCR engine for reading vehicle license plates and container codes. With extensive experience in both Node.js and Python, I understand the intricacies of building a robust backend with Express and a sophisticated OCR worker utilizing OpenCV and Tesseract. My plan involves implementing a seamless integration of the frontend and backend while ensuring that the data is accurately extracted and stored in PostgreSQL. I'll leverage Docker for easy deployment and scalability, optimizing the entire system for performance and security, as per your requirements. I suggest we start with a brief discussion about your specific needs, including how you'd like the user interface to interact with the database, and I can provide a detailed project timeline afterward. What specific features do you envision for the user interface? Thanks,
$750 USD em 22 dias
9,1
9,1

A generic Tesseract model will not achieve 95% on its own. You need: ✔️ Custom preprocessing ✔️ Adaptive thresholding ✔️ Deskewing ✔️ Region-of-interest detection ✔️ (Optionally) fine-tuning with training samples Can you share 20–30 sample images or video frames? Are plates and containers always centered or random angle? Night-time / motion blur / rain images included? Do you need multi-country plates? Is 95% accuracy mandatory or “best efforts”? Do you want a custom-trained OCR model (extra time/cost)?
$250 USD em 7 dias
7,7
7,7

OCR for Plates & Containers project is a perfect match for my skills in Python, Software Architecture, OCR, Node.js, and Image Processing. I am confident in delivering the required accuracy, efficiency, and security measures outlined in the project description. Budget flexibility and prioritizing your needs are my focus. Please review my 15-year-old profile to see my experience. Let's discuss the project details and get started right away. Your satisfaction is my priority, and I am eager to show my commitment to this project. Looking forward to hearing from you.
$525 USD em 10 dias
7,3
7,3

As a seasoned Full-Stack Developer, I possess the necessary expertise to build a robust and reliable OCR engine tailored specifically for your project. My proficiency in Python and Software Architecture, combined with my understanding of OpenCV and pytesseract, is what sets me apart as the ideal candidate for this task. I've developed an array of data-intensive systems and reactive applications throughout my career, which enables me to create a highly responsive and scalable OCR solution - perfectly aligned with what your project demands. To ensure your system functions smoothly and efficiently on Windows, I'll utilize my experience with Node.js (backend), React (frontend), PostgreSQL (database), Docker (deployment) and more - these skills align perfectly with your selection principles. Moreover, my savvy with Node.js will aid in configuring environment variables using .env, such as fine-tuning DATABASE_URL, JWT_SECRET etc. Additionally, my adeptness in Docker would come handy while building images and deploying the stack optimally. With deep knowledge of operational security, I assure you I will handle secure DB access meticulously, manage secrets proficiently and limit exposure sagaciously. Rest assured, I priorityze stringent safety measures.
$500 USD em 7 dias
6,6
6,6

Hi there, I’ve thoroughly reviewed your project regarding the custom OCR engine for reading vehicle license plates and container codes. With my extensive experience as a top freelancer based in California, I have successfully completed numerous tasks in the realms of OCR, API development, and database management, all backed by stellar reviews. I understand the critical importance of achieving ≥ 95% character-level accuracy and delivering prompt processing times, and I’m confident I can meet your requirements efficiently. To implement this system, I propose utilizing Node.js for the backend, Python with OpenCV and Tesseract for the OCR processing, and React for the frontend interface. I will set up PostgreSQL for the database management while ensuring that the entire application is Dockerized for easy deployment. A first demonstration will provide you with a clear understanding of what’s realistically feasible for your project. What specific features or additional functionalities do you envision for the OCR system? Best regards,
$610 USD em 1 dia
6,3
6,3

Hi, I have carefully reviewed your OCR project requirements for reading vehicle license plates and container codes with a Node.js backend, Python OCR worker, React frontend, and PostgreSQL database. With extensive experience in OCR using OpenCV and pytesseract, plus building scalable systems in Docker environments, I can deliver a precise, secure system with >95% accuracy and under 500 ms processing time on 1080p images. I will also ensure smooth installation and future deployments on Windows. Let’s begin with a demo to align expectations and iterate quickly. Thanks, Sagarmoy
$600 USD em 20 dias
6,4
6,4

Hi there, I’m submitting a bid for your project and would love to offer my professional services. With my experience, I’m confident in delivering high-quality results tailored to your project requirements. Feel free to message me to discuss the full scope and budget. View my Freelancer portfolio and client reviews: https://www.freelancer.com/u/Feriver Looking forward to connecting with you. Best regards, Asif Nawaz
$750 USD em 16 dias
6,4
6,4

Hello, I’ve reviewed your project requirements and understand that you need a complete OCR system that can read license plates and container codes from images or video frames, extract the alphanumeric sequence with high accuracy, and insert the results directly into your database. With strong expertise in OCR, Python, Node.js, and full-stack architectures, I can deliver a fully compiled Windows-ready system using Docker for consistent deployments. My approach will involve building a Python OCR worker using OpenCV and Tesseract or a fine-tuned deep learning model to reach the required accuracy while keeping processing time under 500 ms. The worker will push results to PostgreSQL through psycopg2. The backend will be built in Node.js with Express, JWT authentication, secure routes, and clean data handling. A React interface will display processed events using Axios. I will ensure full reproducibility, clear documentation, and environment setup with docker compose. To begin effectively, should the OCR engine prioritize plate formats or container codes during initial tuning? • Ready to see why I'm the right fit for your project? Head over to my profile for client reviews and a glimpse of my portfolio: https://www.freelancer.com/u/ShaikhAneesa Best Regards, Aneesa.
$500 USD em 1 dia
6,2
6,2

Hello, I trust you're doing well. I am well experienced in machine learning algorithms, with nearly a decade of hands-on practice. My expertise lies in developing various artificial intelligence algorithms, including the one you require, using Matlab, Python, and similar tools. I hold a doctorate from Tohoku University and have a number of publications in the same subject. My portfolio, which showcases my past work, is available for your review. Your project piqued my interest, and I would be delighted to be part of it. Let's connect to discuss in detail. Warm regards. please check my portfolio link: https://www.freelancer.com/u/sajjadtaghvaeifr
$600 USD em 7 dias
6,4
6,4

Hello, Thank you so much for posting this opportunity. It sounds like a great fit, and I’d love to be part of it! I’ve worked on similar projects before, and I’m confident I can bring real value to your project. I’m passionate about what I do and always aim to deliver work that’s not only high-quality but also makes things easier and smoother for my clients. Feel free to take a quick look at my profile to see some of the work I’ve done in the past. If it feels like a good match, I’d be happy to chat further about your project and how I can help bring it to life. I’m available to get started right away and will give this project my full attention from day one. Let’s connect and see how we can make this a success together! Looking forward to hearing from you soon. With Regards! Abhishek Saini
$750 USD em 7 dias
6,0
6,0

Hi ElisandroKGS, I came across your project "OCR for Plates & Containers" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in Node.js, API Development. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak
$600 USD em 15 dias
4,9
4,9

Hello! I’m an experienced developer skilled in Python, Node.js, and OCR technologies, and I have a strong background with Docker and PostgreSQL. I understand you need a custom OCR engine to accurately detect vehicle license plates and container codes from images and video frames, returning the data as plain text and inserting it into your database. The final system should be ready for deployment on Windows. My approach will be to build a Python-based OCR worker using proven libraries for image processing, coupled with a Node.js backend handling API routes, authentication, and database integration. Docker will be used to containerize the application for easy installation and scalability. I will ensure the system is delivered compiled and configured with environment variables for smooth setup. Would you like me to also provide documentation or assistance for future deployments and maintenance? Looking forward to your thoughts so we can align on the best implementation path!
$675 USD em 10 dias
4,5
4,5

✋ Hi there. I can build your OCR system to read vehicle license plates and container codes from images and video frames and store them in your database. ✔️ I have solid experience with Python OCR using OpenCV and pytesseract, Node.js backends with Express, JWT authentication, and PostgreSQL integration. In a previous project, I developed a system that processed images and video frames in real time, extracted alphanumeric codes, and inserted results into a database while keeping latency low and accuracy high. ✔️ For your project, I will set up the Python worker to handle OCR, create Node.js endpoints for uploading and retrieving data, and design a React frontend to manage images, view results, and handle authentication. I will make sure Docker-compose deployment is smooth, environment variables are secure, and the system runs on Windows with easy installation. ✔️ I will also prepare test scripts for images and video streams, validate accuracy with your dataset, and provide clear documentation so your team can maintain and extend the system. Let’s chat to discuss your accuracy targets, performance goals, and deployment timeline. Best regards, Mykhaylo
$500 USD em 7 dias
4,6
4,6

⚠️ If you’re not happy, you don’t pay ⚠️ Hello ElisandroKGS, I understand the need for a custom OCR engine that accurately extracts alphanumeric sequences from vehicle license plates and container codes. With 5 years of experience, I have worked on similar projects offsite, delivering fast, professional, and integrated solutions. I will ensure your project goals are met, providing a seamless and stress-free experience. Leveraging Node.js, Python OCR, React, PostgreSQL, and Docker, I guarantee a fully functional system ready for future installations on Windows. I’d love to chat about your project! Worst case, you get free advice that can guide your project. Regards, Piyush Gupta
$450 USD em 15 dias
4,4
4,4

Hi Elisandro, I understand you're looking for a custom OCR engine to accurately recognize vehicle license plates and container codes from images or videos. With experience in Node.js, Python, and OCR technologies, I can efficiently design a solution that meets your criteria. I specialize in developing robust backends with Express and PostgreSQL, and I’m skilled in integrating OCR using OpenCV and Tesseract. I’ll ensure the system is compiled and ready for installation on Windows, adhering to your specifications. To kick this project off, I will need access to your sample images and any existing database structure you have in mind. Based on your expectations, I anticipate a timeline of about two weeks for the initial demo, after we finalize project details. What specific features or performance metrics are you prioritizing for the initial demonstration? Best regards,
$500 USD em 5 dias
4,3
4,3

Hi there, I am excited about the opportunity to develop a custom OCR engine for reading vehicle license plates and container codes. With strong experience in Node.js, Python, and Docker, I am confident in creating a solution that meets your specifications for accuracy and performance. I recently completed a similar project that involved extracting text from images using OpenCV and pytesseract, ensuring seamless integration with databases like PostgreSQL. I propose an initial demonstration within a week to showcase the feasibility of your requirements.
$250 USD em 4 dias
4,1
4,1

Hello Elisandro, I’m confident I can deliver this. I’m a Full Stack developer with 6+ years building OCR and vision pipelines using Python, OpenCV, Tesseract/CRNN models, Node.js, React, PostgreSQL and Docker, and I’ll deliver a compiled Windows-ready package. You need a robust OCR worker to read license plates and container codes from photos and video frames, return exact alphanumeric sequences in correct order, insert them into Postgres, and meet your accuracy and performance targets. I will build a Dockerized stack: Node/Express API with JWT auth, a Python OCR worker using OpenCV preprocessing and Tesseract (with a learned fallback for difficult cases), psycopg2 DB insertion, and a React UI. I’ll provide Windows-ready builds (PyInstaller), clear .env and deployment docs, and validation/tuning against your dataset. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan.
$350 USD em 7 dias
4,1
4,1

Hi Elisandro, I am excited about the opportunity to develop a custom OCR engine tailored to reading vehicle license plates and container codes. With over 7 years of experience in software development, I am proficient in Node.js, Python, and image processing using OpenCV and Tesseract, ensuring your project requirements are met with precision. My expertise in building scalable Node.js backend systems and integrating PostgreSQL databases will facilitate smooth data handling and storage. I will deliver a robust system that achieves the ≥ 95% accuracy benchmark on the validation set you provide, ensuring efficient processing times. Let's discuss your insights in more detail and set a timeline for a first demonstration based on your specifications.
$500 USD em 2 dias
4,0
4,0

Hi, I’ve reviewed your detailed project requirements for a custom OCR engine focused on vehicle license plates and container codes. At Mkaits Technologies, we have extensive experience developing image processing and OCR solutions using Python and OpenCV. We also specialize in creating scalable backend systems with Node.js and PostgreSQL, ensuring smooth data flow and secure operations. Our team is familiar with Docker for containerization, making deployment straightforward on Windows environments. We propose a straightforward architecture: a Python OCR worker that processes images or video frames, extracts the alphanumeric sequences, and inserts the results into your database. The Node.js backend will handle authentication, API routes, and communication with the OCR worker. The React frontend can be used for testing or future integrations. Our approach includes setting up the environment, ensuring dependency management, and establishing a secure, Dockerized stack. We will optimize for speed and accuracy, aiming for your specified processing time and character recognition standards. Testing will involve validation on your provided datasets to confirm the system meets your performance criteria. Let’s have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in the chat. Best, Mughiraa
$500 USD em 7 dias
4,1
4,1

Hi there, I noticed your goal to enhance your OCR system for vehicle license plates and container codes leveraging Node.js, Python, React, and PostgreSQL, which aligns perfectly with our expertise. At DigitaSyndicate, a UK-based digital systems agency, we specialize in precision-built automation and AI-integrated ecosystems tailored for performance and scalability. We recently completed a project similar to your requirements, emphasizing accuracy in data extraction and real-time processing, leading to significant efficiency gains. Would you mind sharing your top priorities and timeline so I can outline a structured plan for seamless execution? Looking forward to crafting a cutting-edge OCR engine that exceeds your expectations. Signature: Casper M. Project Lead | DigitaSyndicate Precision-Built Digital Systems.
$500 USD em 7 dias
3,9
3,9

Porto Alegre, Brazil
Membro desde ago. 15, 2025
€1500-3000 EUR
$30-250 USD
$10-30 USD
$750-1500 AUD
$10-30 USD
$250-750 USD
€250-750 EUR
$1500-3000 USD
£20-250 GBP
₹37500-75000 INR
£10-20 GBP
$10-30 USD
$750-1500 USD
$30-250 AUD
₹75000-150000 INR
$12-30 SGD
$8-15 AUD / hora
$30-250 USD
€3000-5000 EUR
$30-250 USD