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https://github.com/PaddlePaddle/PaddleOCR.git
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add readme
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@@ -27,11 +27,8 @@ if(NOT DEFINED DEMO_NAME)
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message(FATAL_ERROR "please set DEMO_NAME with -DDEMO_NAME=demo_name")
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endif()
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# user ze
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# find_package(OpenCV)
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set(OPENCV_DIR "/paddle/libs/opencv-3.4.7/opencv3")
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set(OPENCV_DIR ${OPENCV_DIR})
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find_package(OpenCV REQUIRED PATHS ${OPENCV_DIR}/share/OpenCV NO_DEFAULT_PATH)
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include_directories(${OpenCV_INCLUDE_DIRS})
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@@ -0,0 +1,149 @@
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# 服务器端C++预测
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本教程将介绍在服务器端部署PaddleOCR超轻量中文检测、识别模型的详细步骤。
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## 1. 准备环境
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### 运行准备
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- Linux环境,推荐使用docker。
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### 1.1 编译opencv库
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* 首先需要从opencv官网上下载在Linux环境下源码编译的包,以opencv3.4.7为例,下载命令如下。
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```
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wget https://github.com/opencv/opencv/archive/3.4.7.tar.gz
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tar -xf 3.4.7.tar.gz
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```
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最终可以在当前目录下看到`opencv-3.4.7/`的文件夹。
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* 编译opencv,设置opencv源码路径(`root_path`)以及安装路径(`install_path`)。进入opencv源码路径下,按照下面的方式进行编译。
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```shell
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root_path=/paddle/libs/opencv-3.4.7
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install_path=${root_path}/opencv3
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rm -rf build
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mkdir build
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cd build
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cmake .. \
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-DCMAKE_INSTALL_PREFIX=${install_path} \
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-DCMAKE_BUILD_TYPE=Release \
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-DBUILD_SHARED_LIBS=OFF \
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-DWITH_IPP=OFF \
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-DBUILD_IPP_IW=OFF \
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-DWITH_LAPACK=OFF \
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-DWITH_EIGEN=OFF \
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-DCMAKE_INSTALL_LIBDIR=lib64 \
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-DWITH_ZLIB=ON \
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-DBUILD_ZLIB=ON \
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-DWITH_JPEG=ON \
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-DBUILD_JPEG=ON \
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-DWITH_PNG=ON \
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-DBUILD_PNG=ON \
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-DWITH_TIFF=ON \
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-DBUILD_TIFF=ON
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make -j
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make install
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```
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最终在安装路径下的文件结构如下所示。
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```
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opencv3/
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|-- bin
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|-- include
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|-- lib
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|-- lib64
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|-- share
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```
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### 1.2 编译Paddle预测库
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* 可以参考[Paddle预测库官网](https://www.paddlepaddle.org.cn/documentation/docs/zh/advanced_guide/inference_deployment/inference/build_and_install_lib_cn.html)的说明,从github上获取Paddle代码,然后进行编译,生成最新的预测库。使用git获取代码方法如下。
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```shell
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git clone https://github.com/PaddlePaddle/Paddle.git
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```
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* 进入Paddle目录后,编译方法如下。
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```shell
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rm -rf build
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mkdir build
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cd build
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cmake .. \
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-DWITH_CONTRIB=OFF \
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-DWITH_MKL=ON \
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-DWITH_MKLDNN=OFF \
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-DWITH_TESTING=OFF \
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-DCMAKE_BUILD_TYPE=Release \
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-DWITH_INFERENCE_API_TEST=OFF \
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-DON_INFER=ON \
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-DWITH_PYTHON=ON
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make -j16
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make inference_lib_dist
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```
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更多编译参数选项可以参考Paddle C++预测库官网:[https://www.paddlepaddle.org.cn/documentation/docs/zh/advanced_guide/inference_deployment/inference/build_and_install_lib_cn.html](https://www.paddlepaddle.org.cn/documentation/docs/zh/advanced_guide/inference_deployment/inference/build_and_install_lib_cn.html)。
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* 编译完成之后,可以在`build/fluid_inference_install_dir/`文件下看到生成了以下文件及文件夹。
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```
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build/fluid_inference_install_dir/
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|-- CMakeCache.txt
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|-- paddle
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|-- third_party
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|-- version.txt
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```
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其中`paddle`就是之后进行C++预测时所需的Paddle库,`version.txt`中包含当前预测库的版本信息。
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## 2 开始运行
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### 2.1 将模型导出为inference model
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* 可以参考[模型预测章节](../../doc/doc_ch/inference.md),导出inference model,用于模型预测。模型导出之后,假设放在`inference`目录下,则目录结构如下。
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```
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inference/
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|-- det_db
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| |--model
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| |--params
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|-- rec_rcnn
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| |--model
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| |--params
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```
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### 2.2 编译PaddleOCR C++预测demo
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* 编译命令如下,其中Paddle C++预测库、opencv等其他依赖库的地址需要换成自己机器上的实际地址。
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```shell
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sh tools/build.sh
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```
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* 编译完成之后,会在`build`文件夹下生成一个名为`ocr_system`的可执行文件。
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### 运行demo
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* 执行以下命令,完成对一幅图像的OCR识别与检测,最终输出
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```shell
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sh tools/run.sh
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```
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最终屏幕上会输出检测结果如下。
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<div align="center">
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<img src="../imgs/cpp_infer_pred_12.png" width="600">
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</div>
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@@ -1,4 +1,5 @@
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OPENCV_DIR=/paddle/libs/opencv-3.4.7/opencv3
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LIB_DIR=/paddle/code/gry/Paddle/build/fluid_inference_install_dir/
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CUDA_LIB_DIR=/usr/local/cuda/lib64
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CUDNN_LIB_DIR=/usr/lib/x86_64-linux-gnu/
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@@ -15,6 +16,7 @@ cmake .. \
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-DWITH_GPU=OFF \
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-DWITH_STATIC_LIB=OFF \
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-DUSE_TENSORRT=OFF \
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-DOPENCV_DIR=${OPENCV_DIR} \
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-DCUDNN_LIB=${CUDNN_LIB_DIR} \
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-DCUDA_LIB=${CUDA_LIB_DIR} \
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-DTENSORRT_ROOT=YOUR_TENSORRT_ROOT_DIR
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@@ -1,2 +1,2 @@
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./build/ocr_system ./inference/det_db/ ./inference/rec_crnn/ ../../doc/imgs/11.jpg
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./build/ocr_system ./inference/det_db/ ./inference/rec_crnn/ ../../doc/imgs/12.jpg
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