PaddleOCR加载chinese_ocr_db_crnn_server模型进行中英文混合预测（命令行）实践

小灰灰 2022-11-10 01:22 251阅读 0赞

##### 1. 安装相关库文件 #####

# 安装paddlehub和paddlepaddle
    pip install paddlehub -i https://pypi.tuna.tsinghua.edu.cn/simple 
    pip install paddlepaddle -i https://pypi.tuna.tsinghua.edu.cn/simple 
    # 该Module依赖于第三方库shapely、pyclipper，使用该Module之前，请先安装shapely、pyclipper
    pip install shapely -i https://pypi.tuna.tsinghua.edu.cn/simple 
    pip install pyclipper -i https://pypi.tuna.tsinghua.edu.cn/simple

使用的是清华的源，在安装时出现过https连接池超时的问题，换个网络环境，多试几次就好了。

##### 2. 安装预训练模型 #####

选择的是识别精度相对较高的：chinese\_ocr\_db\_crnn\_server  
命令是：hub install chinese\_ocr\_db\_crnn\_server==1.1.1

(venv) E:\test\PycharmProjects\PaddleStudy2>hub install chinese_ocr_db_crnn_server==1.1.1
    e:\test\pycharmprojects\paddlestudy2\venv\lib\site-packages\pip\_vendor\packaging\version.py:127: DeprecationWarning: Creating a LegacyVersion has been deprecated and will be removed in the next major release
      warnings.warn(
    e:\test\pycharmprojects\paddlestudy2\venv\lib\site-packages\pip\_vendor\packaging\version.py:127: DeprecationWarning: Creating a LegacyVersion has been deprecated and will be removed in the next major release
      warnings.warn(
    2021-03-16 08:50:50,784 - INFO - Lock 601713536 acquired on C:\Users\CTH\.paddlehub\tmp\chinese_ocr_db_crnn_server
    [INFO 2021-03-16 08:50:50,784 filelock.py:274] Lock 601713536 acquired on C:\Users\CTH\.paddlehub\tmp\chinese_ocr_db_crnn_server
    Download https://bj.bcebos.com/paddlehub/paddlehub_dev/chinese_ocr_db_crnn_server_1.1.1.tar.gz
    [##################################################] 100.00%
    Decompress C:\Users\CTH\.paddlehub\tmp\tmppwvzfx_9\chinese_ocr_db_crnn_server_1.1.1.tar.gz
    [##################################################] 100.00%
    [2021-03-16 08:51:44,000] [    INFO] - Successfully installed chinese_ocr_db_crnn_server-1.1.1
    2021-03-16 08:51:44,047 - INFO - Lock 601713536 released on C:\Users\CTH\.paddlehub\tmp\chinese_ocr_db_crnn_server
    [INFO 2021-03-16 08:51:44,047 filelock.py:318] Lock 601713536 released on C:\Users\CTH\.paddlehub\tmp\chinese_ocr_db_crnn_server

对应的精简版本：chinese\_ocr\_db\_crnn\_mobile  
命令是：hub install chinese\_ocr\_db\_crnn\_mobile==1.1.1

##### 3. 命令行预测 #####

原始图片：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZtMDUxNw_size_16_color_FFFFFF_t_70_pic_center]

命令是：hub run chinese\_ocr\_db\_crnn\_server --input\_path “/PATH/TO/IMAGE”

(venv) E:\test\PycharmProjects\PaddleStudy2>hub run chinese_ocr_db_crnn_server --input_path "E:/test/PycharmProjects/PaddleStudy2/pic/0-1.jpg"
    e:\test\pycharmprojects\paddlestudy2\venv\lib\site-packages\pip\_vendor\packaging\version.py:127: DeprecationWarning: Creating a LegacyVersion has been deprecated and will be removed in the next major release
      warnings.warn(
    e:\test\pycharmprojects\paddlestudy2\venv\lib\site-packages\pip\_vendor\packaging\version.py:127: DeprecationWarning: Creating a LegacyVersion has been deprecated and will be removed in the next major release
      warnings.warn(
    [2021-03-16 08:53:25,582] [ WARNING] - The _initialize method in HubModule will soon be deprecated, you can use the __init__() to handle the initialization of the object
    W0316 08:53:25.598523 12472 analysis_predictor.cc:1145] Deprecated. Please use CreatePredictor instead.
    2021-03-16 08:53:26,440 - INFO - Lock 607078624 acquired on C:\Users\CTH\.paddlehub\tmp\chinese_text_detection_db_server
    [INFO 2021-03-16 08:53:26,440 filelock.py:274] Lock 607078624 acquired on C:\Users\CTH\.paddlehub\tmp\chinese_text_detection_db_server
    Download https://bj.bcebos.com/paddlehub/paddlehub_dev/chinese_text_detection_db_server_1.0.2.tar.gz
    [##################################################] 100.00%
    Decompress C:\Users\CTH\.paddlehub\tmp\tmpvc1k5tyo\chinese_text_detection_db_server_1.0.2.tar.gz
    [##################################################] 100.00%
    [2021-03-16 08:53:55,071] [    INFO] - Successfully installed chinese_text_detection_db_server-1.0.2
    2021-03-16 08:53:55,118 - INFO - Lock 607078624 released on C:\Users\CTH\.paddlehub\tmp\chinese_text_detection_db_server
    [INFO 2021-03-16 08:53:55,118 filelock.py:318] Lock 607078624 released on C:\Users\CTH\.paddlehub\tmp\chinese_text_detection_db_server
    [2021-03-16 08:53:55,118] [ WARNING] - The _initialize method in HubModule will soon be deprecated, you can use the __init__() to handle the initialization of the object
    [{ 'save_path': '', 'data': [{ 'text': '双耳机配对', 'confidence': 0.9995235204696655, 'text_box_position': [[64, 63], [301, 69], [299, 119], [63, 113]]}, { 'text': '首次配对方法：', 'confidence': 0.9997860193252563, 'text_box_position':
    [[71, 186], [336, 194], [334, 232], [70, 225]]}, { 'text': '1、取出两只耳机，再将两只耳机放回充电盒中', 'confidence': 0.9993939399719238, 'text_box_position': [[67, 245], [767, 258], [767, 297], [67, 283]]}, { 'text': '（此步骤为新机激活 ）', 'confidence': 0.9379152655601501, 'text_box_position': [[116, 293], [411, 300], [410, 335], [115, 328]]}, { 'text': '2、再次取出两只耳机', 'confidence': 0.999390721321106, 'text_box_position': [[67, 339], [401, 349], [399, 384], [6
    6, 374]]}, { 'text': '3、刷新手机蓝牙设备列表，点击配对QCY-T1C，完成配对', 'confidence': 0.9993934035301208, 'text_box_position': [[67, 388], [937, 402], [937, 437], [67, 422]]}, { 'text': '耳机取出会自动开机，若未自动开机，请充电后重新 尝试', 'confidence': 0.990841269493103, 'text_box_position': [[80, 436], [938, 451], [938, 483], [80, 468]]}, { 'text': '切换设备配对方法：', 'confidence': 0.9996602535247803, 'text_box_position': [[71, 536], [421, 536], [421, 573], [71
    , 573]]}, { 'text': '1、关闭A手机蓝牙，耳机自动断开进入配对模式', 'confidence': 0.9853517413139343, 'text_box_position': [[67, 590], [791, 598], [791, 636], [67, 629]]}, { 'text': '2、刷新B手机蓝牙设备列表，点击配对QCY-T1C，完成配对', 'c onfidence': 0.9961883425712585, 'text_box_position': [[63, 638], [964, 649], [964, 695], [63, 684]]}, { 'text': '*不支持同时连接两台手机，下次开机默认回连上次配对的手机', 'confidence': 0.9984445571899414, 'text_box_position': [[73, 686]
    , [989, 698], [989, 748], [73, 736]]}]}]

结果：

> \{  
> ‘text’: ‘双耳机配对’,  
> ‘confidence’: 0.9995235204696655,  
> ‘text\_box\_position’: \[\[64, 63\], \[301, 69\], \[299, 119\], \[63, 113\]\]  
> \},  
> \{  
> ‘text’: ‘首次配对方法：’,  
> ‘confidence’: 0.9997860193252563,  
> ‘text\_box\_position’: \[\[71, 186\], \[336, 194\], \[334, 232\], \[70, 225\]\]  
> \},  
> \{  
> ‘text’: ‘1、取出两只耳机，再将两只耳机放回充电盒中’,  
> ‘confidence’: 0.9993939399719238,  
> ‘text\_box\_position’: \[\[67, 245\], \[767, 258\], \[767, 297\], \[67, 283\]\]  
> \},  
> \{  
> ‘text’: ‘（此步骤为新机激活）’,  
> ‘confidence’: 0.9379152655601501,  
> ‘text\_box\_position’: \[\[116, 293\], \[411, 300\], \[410, 335\], \[115, 328\]\]  
> \},  
> \{  
> ‘text’: ‘2、再次取出两只耳机’,  
> ‘confidence’: 0.999390721321106,  
> ‘text\_box\_position’: \[\[67, 339\], \[401, 349\], \[399, 384\], \[66, 374\]\]  
> \},  
> \{  
> ‘text’: ‘3、刷新手机蓝牙设备列表，点击配对QCY-T1C，完成配对’,  
> ‘confidence’: 0.9993934035301208,  
> ‘text\_box\_position’: \[\[67, 388\], \[937, 402\], \[937, 437\], \[67, 422\]\]  
> \},  
> \{  
> ‘text’: ‘耳机取出会自动开机，若未自动开机，请充电后重新尝试’,  
> ‘confidence’: 0.990841269493103,  
> ‘text\_box\_position’: \[\[80, 436\], \[938, 451\], \[938, 483\], \[80, 468\]\]  
> \},  
> \{  
> ‘text’: ‘切换设备配对方法：’,  
> ‘confidence’: 0.9996602535247803,  
> ‘text\_box\_position’: \[\[71, 536\], \[421, 536\], \[421, 573\], \[71, 573\]\]  
> \},  
> \{  
> ‘text’: ‘1、关闭A手机蓝牙，耳机自动断开进入配对模式’,  
> ‘confidence’: 0.9853517413139343,  
> ‘text\_box\_position’: \[\[67, 590\], \[791, 598\], \[791, 636\], \[67, 629\]\]  
> \},  
> \{  
> ‘text’: ‘2、刷新B手机蓝牙设备列表，点击配对QCY-T1C，完成配对’,  
> ‘confidence’: 0.9961883425712585,  
> ‘text\_box\_position’: \[\[63, 638\], \[964, 649\], \[964, 695\], \[63, 684\]\]  
> \},  
> \{  
> ‘text’: ‘\*不支持同时连接两台手机，下次开机默认回连上次配对的手机’,  
> ‘confidence’: 0.9984445571899414,  
> ‘text\_box\_position’: \[\[73, 686\], \[989, 698\], \[989, 748\], \[73, 736\]\]  
> \}

识别效果非常好！！！

【参考文档】  
《[PaddleHub一键OCR中文识别][PaddleHub_OCR]》  
《[PaddleHub][]》

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZtMDUxNw_size_16_color_FFFFFF_t_70_pic_center]: /images/20221023/8037f20720b94dbcb3ac8970e133e016.png
[PaddleHub_OCR]: https://aistudio.baidu.com/aistudio/projectdetail/507159
[PaddleHub]: https://www.paddlepaddle.org.cn/hubdetail?name=chinese_ocr_db_crnn_server&en_category=TextRecognition