[Model] Integrate FlyCV image processing library

[jiangjiajun]

PR types

PR changes

Describe

[jiangjiajun]

编译

git clone https://github.com/PaddlePaddle/FastDeploy
cd FastDeploy
git checkout falconcv
mkdir build && cd build
cmake .. -DENABLE_LITE_BACKEND=ON -DENABLE_VISION=ON -DENABLE_FLYCV=ON -DCMAKE_INSTALL_PREFIX=${PWD}/installed_fastdeploy

make -j8
make install

编译完成后，C++ SDK即在当前目录的installed_fastdeploy目录下

测试

下载附件[ demo.tgz](https://bj.bcebos.com/fastdeploy/tests/demo.tgz)

tar xvf demo.zip
cd demo
cmake . -DFASTDEPLOY_INSTALL_DIR=/path/to/installed_fastdeploy
make -j

执行如下命令得到测试时间

./test_picodet picodet_l_320_coco_lcnet 000000014439.jpg

如果执行时，提示找到.so，可执行source /path/to/installed_fastdeploy/fastdeploy_init.sh来导入库路径

默认跑的是flycv库，如若需切换为opencv库，修改test_picodet.cc，注释fastdeploy::vision::EnableFlyCV()即可

代码说明

所有预处理算子封装在fastdeploy/vision/common/processors目录下，可在相应的代码中加日志debug

picodet的预处理函数Preprocess在fastdeploy/vision/detection/ppdet/ppyoloe.cc中实现，可在相应的代码中加日志debug