Extracting Structured JSON from Any Image
Blog post from Roboflow
The tutorial outlines a method for automating the extraction of structured JSON data from receipt images using Roboflow Workflows and a vision-language model (VLM), specifically targeting corporate expense reimbursement processes. By leveraging the OpenAI model GPT-5.2, the workflow standardizes input images, extracts key fields such as merchant, date, and total from the receipt, and converts them into a validated JSON format. This JSON data is then parsed and sent to Slack for real-time expense logging and reimbursement processing. The guide emphasizes the importance of accurate extraction and suggests strategies for handling real-world document challenges, like inconsistent receipt formats and image quality issues, while also highlighting the need for robust monitoring and iterative improvements in production systems. Overall, the tutorial demonstrates how structured extraction can streamline workflows, reduce manual data entry, and integrate seamlessly into existing operational systems.