[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-07-16。"],[[["Optical Character Recognition (OCR) is a pre-trained Vertex AI API on Google Distributed Cloud (GDC) air-gapped that can detect text in images, document files, and handwritten text."],["The OCR service offers three methods: `BatchAnnotateImages` for detecting text from JPEG or PNG images, `BatchAnnotateFiles` for PDF or TIFF files in inline requests, and `AsyncBatchAnnotateFiles` for offline text detection from PDF or TIFF files in storage buckets."],["The OCR API supports two main features: `TEXT_DETECTION` to extract text from any image and `DOCUMENT_TEXT_DETECTION` optimized for dense text and documents."],["The OCR API also supports handwritten text detection and extraction, with specific supported handwriting scripts available for recognition."],["OCR has limitations such as a maximum of five pages, a 20 MB file size limit, and a maximum image size of 20 million pixels, and it supports file types like PDF, TIFF, JPG, and PNG, stored locally in the Distributed Cloud environment."]]],[]]
