Image Reader - OCR Text Extraction#

A high-performance OCR skill for extracting text from images. Powered by RapidOCR with PP-OCRv4 models, supporting Chinese and English text recognition.

Features#

• Multi-language: Chinese (simplified/traditional), English, and mixed text
• High accuracy: PP-OCRv4 model with >95% accuracy on typical screenshots
• Structured output: Text with confidence scores and bounding boxes
• Image info: Dimensions, format, and color mode included
• Fast: CPU-only, no GPU required

Quick Start#

bash

python scripts/read_image.py /path/to/image.jpg

Usage Examples#

Extract text from a screenshot#

bash

python scripts/read_image.py screenshot.png

JSON Output#

The script outputs structured JSON:

json

{
  "success": true,
  "text": "Full extracted text",
  "lines": [
    {
      "text": "Individual line",
      "confidence": 0.98,
      "box": [[x1,y1], [x2,y2], [x3,y3], [x4,y4]]
    }
  ],
  "line_count": 5,
  "image_info": {
    "format": "PNG",
    "size": [1920, 1080],
    "mode": "RGB"
  }
}

Requirements#

bash

pip install rapidocr onnxruntime pillow

First run will download OCR models (~50MB) automatically.

Common Use Cases#

• UI Screenshots: Extract text from app/website screenshots
• Document Photos: Read text from photographed documents
• Diagrams: Extract labels and annotations
• Receipts: Parse receipt/invoice data

Output Fields#

FieldTypeDescriptionsuccessboolWhether OCR succeededtextstringAll extracted textlinesarrayIndividual text lines with metadataline_countintNumber of text lines detectedimage_infoobjectImage metadata

Technical Details#

• Engine: RapidOCR (ONNX Runtime backend)
• Models: PP-OCRv4 (detection + recognition)
• Languages: Chinese, English (auto-detected)
• Performance: ~1-2 seconds per image on CPU

License#

MIT License

Third-party dependencies:

• RapidOCR - Apache 2.0 License
• ONNX Runtime - MIT License