Merge branch 'dygraph' into drgraph/fix_infer_post

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**Recent Update** **Recent Update**
-2021.4.9 supports the detection and recognition of 80 languages - 2021.4.9 supports the detection and recognition of 80 languages
-2021.4.9 supports **lightweight high-precision** English model detection and recognition - 2021.4.9 supports **lightweight high-precision** English model detection and recognition
PaddleOCR aims to create a rich, leading, and practical OCR tool library, which not only provides PaddleOCR aims to create a rich, leading, and practical OCR tool library, which not only provides
Chinese and English models in general scenarios, but also provides models specifically trained Chinese and English models in general scenarios, but also provides models specifically trained
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This document will briefly introduce how to use the multilingual model. This document will briefly introduce how to use the multilingual model.
-[1 Installation](#Install) - [1 Installation](#Install)
-[1.1 paddle installation](#paddleinstallation) - [1.1 paddle installation](#paddleinstallation)
-[1.2 paddleocr package installation](#paddleocr_package_install) - [1.2 paddleocr package installation](#paddleocr_package_install)
-[2 Quick Use](#Quick_Use) - [2 Quick Use](#Quick_Use)
-[2.1 Command line operation](#Command_line_operation) - [2.1 Command line operation](#Command_line_operation)
-[2.1.1 Prediction of the whole image](#bash_detection+recognition) - [2.1.1 Prediction of the whole image](#bash_detection+recognition)
-[2.1.2 Recognition](#bash_Recognition) - [2.1.2 Recognition](#bash_Recognition)
-[2.1.3 Detection](#bash_detection) - [2.1.3 Detection](#bash_detection)
-[2.2 python script running](#python_Script_running) - [2.2 python script running](#python_Script_running)
-[2.2.1 Whole image prediction](#python_detection+recognition) - [2.2.1 Whole image prediction](#python_detection+recognition)
-[2.2.2 Recognition](#python_Recognition) - [2.2.2 Recognition](#python_Recognition)
-[2.2.3 Detection](#python_detection) - [2.2.3 Detection](#python_detection)
-[3 Custom Training](#Custom_Training) - [3 Custom Training](#Custom_Training)
-[4 Supported languages and abbreviations](#language_abbreviations) - [4 Supported languages and abbreviations](#language_abbreviations)
<a name="Install"></a> <a name="Install"></a>
## 1 Installation ## 1 Installation
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paddleocr --image_dir doc/imgs/japan_2.jpg --lang=japan paddleocr --image_dir doc/imgs/japan_2.jpg --lang=japan
``` ```
![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.0/doc/imgs/japan_2.jpg) ![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.1/doc/imgs/japan_2.jpg)
The result is a list, each item contains a text box, text and recognition confidence The result is a list, each item contains a text box, text and recognition confidence
```text ```text
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paddleocr --image_dir doc/imgs_words/japan/1.jpg --det false --lang=japan paddleocr --image_dir doc/imgs_words/japan/1.jpg --det false --lang=japan
``` ```
![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.0/doc/imgs_words/japan/1.jpg) ![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.1/doc/imgs_words/japan/1.jpg)
The result is a tuple, which returns the recognition result and recognition confidence The result is a tuple, which returns the recognition result and recognition confidence
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``` ```
Visualization of results: Visualization of results:
![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.0/doc/imgs_results/korean.jpg) ![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.1/doc/imgs_results/korean.jpg)
* Recognition * Recognition
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print(line) print(line)
``` ```
![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.0/doc/imgs_words/german/1.jpg) ![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.1/doc/imgs_words/german/1.jpg)
The result is a tuple, which only contains the recognition result and recognition confidence The result is a tuple, which only contains the recognition result and recognition confidence
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``` ```
Visualization of results: Visualization of results:
![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.0/doc/imgs_results/whl/12_det.jpg) ![](https://raw.githubusercontent.com/PaddlePaddle/PaddleOCR/release/2.1/doc/imgs_results/whl/12_det.jpg)
ppocr also supports direction classification. For more usage methods, please refer to: [whl package instructions](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.0/doc/doc_ch/whl.md). ppocr also supports direction classification. For more usage methods, please refer to: [whl package instructions](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.0/doc/doc_ch/whl.md).