Introduction to OCR using Computer Vision's Read API
Explore the fundamentals of Optical Character Recognition using Azure Computer Vision's Read API. Understand the steps involved in extracting text from images and multi-page PDFs, including preprocessing, text localization, and post-processing. Gain practical insights into handling text extraction through structured JSON output and learn the API's limitations to implement effective OCR solutions.
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Introduction to OCR
The term OCR stands for Optical Character Recognition. Optical Character Recognition deals with the problem of recognizing all the different handwritten and printed characters. These characters can be converted into a machine-readable, digital data format. OCR consists of several sub-processes to perform this operation in an efficient and accurate manner. The sub-processes are:
- Preprocessing of the image
- Text