Image OCR Parse

通过云端 OCR 服务从图片中提取文字，需在请求头携带 API key；支持图片地址、base64 或多部分上传，可选灰度、锐化、二值化与缩放预处理，并可返回词级边界框。图片会上传至外部服务处理，材料列出回执、名片、车牌、仪表读数等用例。

rishabhdugar

热度 61.12

最近更新 2026-05-11 17:44:07

分类：效率依赖：第三方 API / 代码执行应用场景：文件转换 / 数据处理

安装技能

复制下面的话术发给你的 Agent，它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill： npx secure-skills-cli add image-ocr-parse

Metadata

name: image-ocr-parse
description: Extract text from images via the PDFAPIHub cloud OCR API. Images are uploaded to pdfapihub.com for Tesseract OCR processing. Supports preprocessing (grayscale, sharpen, threshold, resize) and word-level bounding boxes. Requires a CLIENT-API-KEY header.
metadata: {"openclaw":{"primaryEnv":"PDFAPIHUB_API_KEY","requires":{"env":["PDFAPIHUB_API_KEY"]}}}

Image OCR Parse

What It Does

Extracts text from images via the PDFAPIHub hosted OCR API. Your image is uploaded to PDFAPIHub servers where Tesseract OCR processes it and returns the extracted text. Supports optional image preprocessing to improve OCR quality on low-resolution or noisy inputs.

When to Use

Extract text from photos of receipts, signs, or documents
OCR business cards, ID cards, or labels
Process low-quality images with preprocessing

Required Inputs

Provide one of:

image_url — URL to an image
base64_image — base64-encoded image
Multipart upload with file field

Authentication

This skill calls the PDFAPIHub hosted API at https://pdfapihub.com/api. Your image is uploaded to PDFAPIHub servers for OCR processing.

Send your API key in the CLIENT-API-KEY header.

Get your free API key at https://pdfapihub.com. Full API documentation is available at https://pdfapihub.com/docs.

Privacy note: Images you process are uploaded to PDFAPIHub's cloud service and the extracted text is returned. Do not send sensitive images unless you trust the service. Files are auto-deleted after 30 days.

Use Cases

Receipt Scanning — Extract text from receipt photos for expense tracking
Business Card Reader — OCR business card images to extract name, phone, email
License Plate Recognition — Extract plate numbers from photos (with char_whitelist)
Meter Reading — Extract digits from utility meter photos for automated logging
Whiteboard Capture — OCR whiteboard or handwritten note photos into text
Product Label Scanning — Extract ingredient lists or nutrition info from product label photos

Image Preprocessing Options

Param	Default	Description
`grayscale`	false	Convert to grayscale
`sharpen`	false	Apply sharpening
`threshold`	0	Binarization threshold (1–255)
`resize`	0	Scale factor (max 4x)

Example Usage

curl -X POST https://pdfapihub.com/api/v1/image/ocr/parse \
  -H "CLIENT-API-KEY: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "image_url": "https://pdfapihub.com/sample-invoicepage.png",
    "lang": "eng",
    "grayscale": true,
    "sharpen": true,
    "detail": "words"
  }'