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+ # PaddleOCR v4 (PP-OCRv4)
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+
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+ ## Model Description
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+ **PP-OCRv4** is the fourth-generation end-to-end optical character recognition system from the PaddlePaddle team.
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+ It combines a lightweight **text detection → angle classification → text recognition** pipeline with improved training techniques and data augmentation, delivering higher accuracy and robustness while staying efficient for real-time use.
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+
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+ PP-OCRv4 supports multilingual OCR (Latin and non-Latin scripts), irregular layouts (rotated/curved text), and challenging inputs such as noisy or low-resolution images often found in mobile and document-scan scenarios.
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+
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+ ## Features
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+ - **End-to-end OCR**: text detection, optional angle classification, and text recognition in one pipeline.
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+ - **Multilingual support**: pretrained models for English, Chinese, and dozens of other languages; easy finetuning for domain text.
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+ - **Robust in real-world conditions**: handles rotation, perspective distortion, blur, low light, and complex backgrounds.
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+ - **Lightweight & fast**: practical for both mobile apps and large-scale server deployments.
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+ - **Flexible I/O**: works with photos, scans, screenshots, receipts, invoices, ID cards, dashboards, and UI text.
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+ - **Extensible**: swap components (detector/recognizer), add language packs, or finetune on domain datasets.
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+
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+ ## Use Cases
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+ - Document digitization (invoices, receipts, forms, contracts)
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+ - RPA and back-office automation (screen/OCR flows)
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+ - Mobile scanning apps and camera-based translation/read-aloud
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+ - Industrial and retail analytics (labels, price tags, shelf tags)
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+ - Accessibility (screen-readers and read-aloud applications)
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+
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+ ## Inputs and Outputs
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+ **Input**: Image (photo, scan, or screenshot).
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+ **Output**: A list of detected text regions, each with:
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+ - bounding box (rectangular or polygonal)
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+ - recognized text string
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+ - optional confidence score and orientation
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+
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+ ## License
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+ - Licensed under [Apache-2.0](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.7/LICENSE)
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+
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+ ## References
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+ - GitHub repo: [https://github.com/PaddlePaddle/PaddleOCR](https://github.com/PaddlePaddle/PaddleOCR)
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+ - Model zoo & documentation: [Models list](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.7/doc/doc_en/models_list_en.md)