👋Hi, I’m Vishnu — B.Tech student at IIIT Jabalpur, LeetCode Knight (700+ problems), backend & embedded systems enthusiast. Always building, always learning.
A reversible image watermarking system developed in Python, featuring tamper detection and image recovery using SIFT. Built with OpenCV and NumPy, the algorithm enables secure, reversible watermark embedding and accurate localization of tampered regions. Designed with a focus on image integrity, feature robustness, and visual quality.
What if you had all the data in the world?
A collection of sample apps and recipes built with the TinyFish web agent. Open-source examples for you to learn & build!
A Spring Boot 3.2–based REST API for managing patients, appointments, medical records, payments, and admin analytics using PostgreSQL, JPA, and clean layered architecture.
A Spring Boot–based personal finance manager with income/expense tracking, savings goals, category management, and reporting. Secured with Spring Security, tested with JUnit and Mockito, and deployed on Render via Docker.
A robust e-commerce backend API built with Spring Boot, featuring JWT authentication, product management, and order processing. Secured with Spring Security and deployed on Railway.
Smart-Dose is a NodeMCU-based health assistant that tracks injection times and locations, preventing site overuse and ensuring timely doses. Features include OLED display feedback, EEPROM storage, Wi-Fi time sync, and buzzer reminders.
An interactive brick-breaker game developed in Java, featuring engaging mechanics and intuitive gameplay. Designed using Java’s AWT and Swing libraries while following object-oriented programming principles. Optimized collision detection and game physics to ensure a smooth player experience.
An Arduino-based motion detection system designed to assist paralyzed individuals by detecting minimal movements and triggering alerts. Utilizes sensors, a transmitter-receiver module, and a buzzer for real-time assistance. Aims to improve communication and caregiver response for enhanced patient support
A full-featured journal application built with Spring Boot, integrating MongoDB Atlas for cloud storage. Secured with Spring Security and enhanced with Logback for logging. Implements unit and integration testing with Mockito, supports real-time messaging with Kafka, and integrates external APIs. Deployed on Heroku with API testing via Postman
Splice Site Detection Using Chaos Game Representation and Neural Networks
A Python-based Expense Tracker application to manage personal expenditures efficiently.