Image OCR Guide: Extract Text From Photos and Screenshots
OCR converts image text into machine-readable characters. Overview of Tesseract, Google Vision API, and browser-based OCR tools.
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Tags: image, ocr, text-extraction
Image to Text (OCR): Tesseract and Cloud Vision Guide Optical Character Recognition (OCR) converts images of text into machine-readable strings. Whether you're processing scanned documents, photographed receipts, screenshots with embedded text, or license plates, OCR is the technology that bridges the gap between visual content and structured data. Understanding how it works — and when each tool is appropriate — helps you choose the right approach for your use case. How OCR Works Modern OCR operates in several stages: 1. Preprocessing. Raw images are rarely OCR-ready. Preprocessing improves recognition accuracy by correcting skew (straightening tilted scans), increasing contrast, converting to grayscale, and applying thresholding to create a binary (black and white) image. Many OCR…
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