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63 lines
2.4 KiB
Markdown
63 lines
2.4 KiB
Markdown
[English](README.md) | 简体中文
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# EDVR Python部署示例
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在部署前,需确认以下两个步骤
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- 1. 软硬件环境满足要求,参考[FastDeploy环境要求](../../../../../docs/cn/build_and_install/download_prebuilt_libraries.md)
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- 2. FastDeploy Python whl包安装,参考[FastDeploy Python安装](../../../../../docs/cn/build_and_install/download_prebuilt_libraries.md)
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本目录下提供`infer.py`快速完成EDVR在CPU/GPU,以及GPU上通过TensorRT加速部署的示例。执行如下脚本即可完成
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```bash
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#下载部署示例代码
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git clone https://github.com/PaddlePaddle/FastDeploy.git
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cd FastDeploy/examples/vision/sr/edvr/python
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# 下载VSR模型文件和测试视频
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wget https://bj.bcebos.com/paddlehub/fastdeploy/EDVR_M_wo_tsa_SRx4.tar
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tar -xvf EDVR_M_wo_tsa_SRx4.tar
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wget https://bj.bcebos.com/paddlehub/fastdeploy/vsr_src.mp4
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# CPU推理
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python infer.py --model EDVR_M_wo_tsa_SRx4 --video vsr_src.mp4 --frame_num 5 --device cpu
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# GPU推理
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python infer.py --model EDVR_M_wo_tsa_SRx4 --video vsr_src.mp4 --frame_num 5 --device gpu
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# GPU上使用TensorRT推理 (注意:TensorRT推理第一次运行,有序列化模型的操作,有一定耗时,需要耐心等待)
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python infer.py --model EDVR_M_wo_tsa_SRx4 --video vsr_src.mp4 --frame_num 5 --device gpu --use_trt True
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```
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## EDVR Python接口
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```python
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fd.vision.sr.EDVR(model_file, params_file, runtime_option=None, model_format=ModelFormat.PADDLE)
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```
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EDVR模型加载和初始化,其中model_file和params_file为训练模型导出的Paddle inference文件,具体请参考其文档说明[模型导出](https://github.com/PaddlePaddle/PaddleGAN/blob/develop/docs/zh_CN/tutorials/video_super_resolution.md)
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**参数**
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> * **model_file**(str): 模型文件路径
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> * **params_file**(str): 参数文件路径
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> * **runtime_option**(RuntimeOption): 后端推理配置,默认为None,即采用默认配置
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> * **model_format**(ModelFormat): 模型格式,默认为Paddle格式
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### predict函数
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> ```python
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> EDVR.predict(frames)
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> ```
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>
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> 模型预测结口,输入图像直接输出检测结果。
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>
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> **参数**
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>
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> > * **frames**(list[np.ndarray]): 输入数据,注意需为HWC,BGR格式, frames为视频帧序列
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> **返回** list[np.ndarray] 为超分后的视频帧序列
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## 其它文档
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- [EDVR 模型介绍](..)
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- [EDVR C++部署](../cpp)
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- [如何切换模型推理后端引擎](../../../../../docs/cn/faq/how_to_change_backend.md)
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