How to Use Node-RED with Roboflow

Node-RED is a low-code visual programming tool that simplifies the integration of code, tools, and APIs into workflows, allowing users to create modular and intuitive processes for tasks such as computer vision. The article introduces roboflow-red, an extension for Node-RED that facilitates the integration of computer vision tasks, like object detection and classification, into workflows. Using a practical example of license plate detection and recognition, the article demonstrates how to build a Node-RED flow that processes images through various stages, ultimately transforming visual data into text using OCR. The process is streamlined by Node-RED's visual interface, which allows for easy adjustments and debugging, and is enhanced by roboflow-red's nodes that simplify tasks such as inference and image upload. Additionally, the guide explores implementing active learning to refine models with real-life data, illustrating the versatility and adaptability of combining Node-RED with Roboflow for diverse applications.