[MMEditing](https://github.com/open-mmlab/mmediting/tree/1.x) aka `mmedit` is an open-source image and video editing toolbox based on PyTorch. It is a part of the [OpenMMLab](https://openmmlab.com/) project.
You can use [tools/deploy.py](https://github.com/open-mmlab/mmdeploy/tree/1.x/tools/deploy.py) to convert mmedit models to the specified backend models. Its detailed usage can be learned from [here](https://github.com/open-mmlab/mmdeploy/tree/1.x/docs/en/02-how-to-run/convert_model.md#usage).
When using `tools/deploy.py`, it is crucial to specify the correct deployment config. We've already provided builtin deployment config [files](https://github.com/open-mmlab/mmdeploy/tree/1.x/configs/mmedit) of all supported backends for mmedit, under which the config file path follows the pattern:
MMDeploy supports models of one task in mmedit, i.e., `super resolution`. Please refer to chapter [supported models](#supported-models) for task-model organization.
**DO REMEMBER TO USE** the corresponding deployment config file when trying to convert models of different tasks.
- **{backend}:** inference backend, such as onnxruntime, tensorrt, pplnn, ncnn, openvino, coreml etc.
- **{precision}:** fp16, int8. When it's empty, it means fp32
- **{static | dynamic}:** static shape or dynamic shape
- **{shape}:** input shape or shape range of a model
### Convert super resolution model
The command below shows an example about converting `ESRGAN` model to onnx model that can be inferred by ONNX Runtime.
You can also convert the above model to other backend models by changing the deployment config file `*_onnxruntime_dynamic.py` to [others](https://github.com/open-mmlab/mmdeploy/tree/1.x/configs/mmedit), e.g., converting to tensorrt model by `super-resolution/super-resolution_tensorrt-_dynamic-32x32-512x512.py`.
When converting mmedit models to tensorrt models, --device should be set to "cuda"
```
## Model specification
Before moving on to model inference chapter, let's know more about the converted model structure which is very important for model inference.
The converted model locates in the working directory like `mmdeploy_models/mmedit/ort` in the previous example. It includes:
```
mmdeploy_models/mmedit/ort
├── deploy.json
├── detail.json
├── end2end.onnx
└── pipeline.json
```
in which,
- **end2end.onnx**: backend model which can be inferred by ONNX Runtime
- \***.json**: the necessary information for mmdeploy SDK
The whole package **mmdeploy_models/mmedit/ort** is defined as **mmdeploy SDK model**, i.e., **mmdeploy SDK model** includes both backend model and inference meta information.
## Model inference
### Backend model inference
Take the previous converted `end2end.onnx` model as an example, you can use the following code to inference the model and visualize the results.
```python
from mmdeploy.apis.utils import build_task_processor
from mmdeploy.utils import get_input_shape, load_config
Besides python API, mmdeploy SDK also provides other FFI (Foreign Function Interface), such as C, C++, C#, Java and so on. You can learn their usage from [demos](https://github.com/open-mmlab/mmdeploy/tree/1.x/demo).
