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ONNX PaddleOCR

Project description

ONNX PaddleOCR

这是一个基于 ONNX 的 PaddleOCR 实现,支持文字检测和识别功能。

特性

  • 支持多种语言文字识别
  • 基于 ONNX,无需安装 PaddlePaddle 和 paddleocr
  • 支持 GPU 加速(需要 onnxruntime-gpu)
  • 轻量级部署

安装

pip install onnx-paddleocr # pip安装
uv add onnx-paddleocr # uv安装

使用方法

命令行使用

pipx install onnx-paddleocr # pipx安装
uv tool install onnx-paddleocr # uv安装
ocr --help # 帮助信息
ocr ./test.jpg --output ./output # 示例:识别图片

Python API 使用

import cv2

from onnx_ocr import ONNXPaddleOcr, process_bounding_box

# 初始化OCR
model = ONNXPaddleOcr(
    use_angle_cls=False,
    use_gpu=False,
    cpu_threads=16,
    det_model_dir="",  # 不指定默认:~/.onnx/models/ppocrv5_server/det/det.onnx
    rec_model_dir="",  # 不指定默认:~/.onnx/models/ppocrv5_server/rec/rec.onnx
)

# 读取图片
img = cv2.imread("./images/test.jpg")

# 执行OCR
results = model.ocr(img)

# 输出结果
ocr_results = [
    {
        "text": line[1][0],
        "confidence": float(line[1][1]),
        "bounding_box": process_bounding_box(line[0]),
    }
    for line in result[0]
]

模型文件

模型采用ppocrv5_server文件不会包含在安装包中,首次运行时程序会自动从 GitHub Releases 下载所需模型文件到本地用户目录下的:~/.onnx/models/ppocrv5_server

如果您希望手动下载模型,请访问以下链接:

将这些文件放置在如下目录结构中:

~/.onnx/models/
└── ppocrv5_server/
    ├── det/
    │   └── det.onnx
    └── rec/
        └── rec.onnx

部分参数说明

参数 默认值 说明
--use-angle-cls False 是否使用角度分类器
--use-gpu False 是否使用 GPU
--det-model ~/.onnx/models/ppocrv5_server/det/det.onnx 检测模型路径
--rec-model ~/.onnx/models/ppocrv5_server/rec/rec.onnx 识别模型路径

许可证

本项目采用 MIT 许可证。

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