[Docs] (CodeCamp #76) translate add_transforms.md and conventions.md (#674)

* translate add_transforms.md and conventions.md

* translate add_transforms.md and conventions.md

* update add_translate.md format

* update add_translate.md format

* update

Co-authored-by: fangyixiao18 <[email protected]>

Author: Caczhtus

docs/en/advanced_guides/add_transforms.md

@@ -66,11 +66,11 @@ class NewTransform(BaseTransform):
         return results
 ```
 
-**Note:** For the implementation of transforms, you could apply functions in [mmcv](https://github.com/open-mmlab/mmcv/tree/dev-2.x/mmcv/image).
+**Note:** For the implementation of transforms, you could apply functions in [mmcv](https://github.com/open-mmlab/mmcv/tree/2.x/mmcv/image).
 
 ### Step 2: Add NewTransform to \_\_init\_\_py
 
-Then, add the transform to [\_\_init\_\_.py](https://github.com/open-mmlab/mmselfsup/blob/1.x/mmselfsup/datasets/transforms/__init__.py).
+Then, add the transform to [\_\_init\_\_.py](https://github.com/open-mmlab/mmselfsup/blob/dev-1.x/mmselfsup/datasets/transforms/__init__.py).
 
 ```python
 ...

docs/zh_cn/advanced_guides/add_transforms.md

@@ -1 +1,118 @@
-# Add Transforms
+# 添加数据变换
+
+在本教程中, 我们将介绍创建自定义转换的基本步骤。在学习创建自定义转换之前, 建议先了解文件 [transforms.md](transforms.md) 中转换的基本概念。
+
+- [添加数据变换](#添加数据变换)
+  - [管道概述](#管道概述)
+  - [在管道中创建新转换](#在管道中创建新转换)
+    - [步骤 1: 创建转换](#步骤-1-创建转换)
+    - [步骤 2: 将新转换添加到 \_\_init\_\_py](#步骤-2-将新转换添加到-__init__py)
+    - [步骤 3: 修改配置文件](#步骤-3-修改配置文件)
+
+## 管道概述
+
+在 `Dataset` 中, `Pipeline` 是中的一个重要组件, 主要负责对图像应用一系列数据增强, 例如: `RandomResizedCrop`, `RandomFlip` 等操作。
+
+以下代码是 `Pipeline` 用于 `SimCLR` 训练的配置示例:
+
+```python
+view_pipeline = [
+    dict(type='RandomResizedCrop', size=224, backend='pillow'),
+    dict(type='RandomFlip', prob=0.5),
+    dict(
+        type='RandomApply',
+        transforms=[
+            dict(
+                type='ColorJitter',
+                brightness=0.8,
+                contrast=0.8,
+                saturation=0.8,
+                hue=0.2)
+        ],
+        prob=0.8),
+    dict(
+        type='RandomGrayscale',
+        prob=0.2,
+        keep_channels=True,
+        channel_weights=(0.114, 0.587, 0.2989)),
+    dict(type='RandomGaussianBlur', sigma_min=0.1, sigma_max=2.0, prob=0.5),
+]
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', file_client_args=file_client_args),
+    dict(type='MultiView', num_views=2, transforms=[view_pipeline]),
+    dict(type='PackSelfSupInputs', meta_keys=['img_path'])
+]
+```
+
+在这个 `Pipeline` 中, 每个数据增强接收一个 `dict` , 它们作为输入和输出时刻, 包含图像增强以及其他相关信息的 `dict` 。
+
+## 在管道中创建新转换
+
+以下是创建新转换的步骤。
+
+### 步骤 1: 创建转换
+
+在 [processing.py](https://github.com/open-mmlab/mmselfsup/tree/dev-1.x/mmselfsup/datasets/transforms/processing.py) 中编写一个新的转换类, 并在类中覆盖这个 `transform` 函数, 这个函数接收一个 `dict` 的对象, 并返回一个 `dict` 对象
+
+```python
+@TRANSFORMS.register_module()
+class NewTransform(BaseTransform):
+    """Docstring for transform.
+    """
+
+    def transform(self, results: dict) -> dict:
+        # apply transform
+        return results
+```
+
+**注意**: 对于这些转换的实现, 您可以应用 [mmcv](https://github.com/open-mmlab/mmcv/tree/2.x/mmcv/image) 中的函数。
+
+### 步骤 2: 将新转换添加到 \_\_init\_\_py
+
+然后, 将转换添加到 [\_\_init\_\_.py](https://github.com/open-mmlab/mmselfsup/blob/dev-1.x/mmselfsup/datasets/transforms/__init__.py) 。
+
+```python
+...
+from .processing import NewTransform, ...
+
+__all__ = [
+    ..., 'NewTransform'
+]
+```
+
+### 步骤 3: 修改配置文件
+
+要使用新添加的 `NewTransform`, 你可以按以下的方式修改配置文件:
+
+```python
+view_pipeline = [
+    dict(type='RandomResizedCrop', size=224, backend='pillow'),
+    dict(type='RandomFlip', prob=0.5),
+    # add `NewTransform`
+    dict(type='NewTransform'),
+    dict(
+        type='RandomApply',
+        transforms=[
+            dict(
+                type='ColorJitter',
+                brightness=0.8,
+                contrast=0.8,
+                saturation=0.8,
+                hue=0.2)
+        ],
+        prob=0.8),
+    dict(
+        type='RandomGrayscale',
+        prob=0.2,
+        keep_channels=True,
+        channel_weights=(0.114, 0.587, 0.2989)),
+    dict(type='RandomGaussianBlur', sigma_min=0.1, sigma_max=2.0, prob=0.5),
+]
+
+train_pipeline = [
+    dict(type='LoadImageFromFile', file_client_args=file_client_args),
+    dict(type='MultiView', num_views=2, transforms=[view_pipeline]),
+    dict(type='PackSelfSupInputs', meta_keys=['img_path'])
+]
+```

docs/zh_cn/advanced_guides/conventions.md

@@ -1 +1,61 @@
-# Conventions
+# 约定
+
+- [约定](#约定)
+  - [损失](#损失)
+
+如果您想将 MMSelfSup 修改为您自己的项目, 请检查以下约定。
+
+## 损失
+
+当算法实现时, 函数 `loss` 返回的损失应该是 `dict` 类型。
+
+举个 `MAE` 的例子：
+
+```python
+class MAE(BaseModel):
+    """MAE.
+
+    Implementation of `Masked Autoencoders Are Scalable Vision Learners
+    <https://arxiv.org/abs/2111.06377>`_.
+    """
+
+    def extract_feat(self, inputs: List[torch.Tensor],
+                     **kwarg) -> Tuple[torch.Tensor]:
+        ...
+
+    def loss(self, inputs: List[torch.Tensor],
+             data_samples: List[SelfSupDataSample],
+             **kwargs) -> Dict[str, torch.Tensor]:
+        """The forward function in training.
+
+        Args:
+            inputs (List[torch.Tensor]): The input images.
+            data_samples (List[SelfSupDataSample]): All elements required
+                during the forward function.
+
+        Returns:
+            Dict[str, torch.Tensor]: A dictionary of loss components.
+        """
+        # ids_restore: the same as that in original repo, which is used
+        # to recover the original order of tokens in decoder.
+        latent, mask, ids_restore = self.backbone(inputs[0])
+        pred = self.neck(latent, ids_restore)
+        loss = self.head(pred, inputs[0], mask)
+        losses = dict(loss=loss)
+        return losses
+
+```
+
+在 `MAE` 模型正向传播期间, 这个 `MAE.loss()` 函数将被调用用于计算损失并返回这个损失值。
+
+默认情况下, 只有 `dict` 中的键包含的 `loss` 值时, 才会进行反向传播, 如果你的算法需要多个损失值, 你可以用多个键打包损失字典。
+
+```python
+class YourAlgorithm(BaseModel):
+
+    def loss():
+        ...
+
+        losses['loss_1'] = loss_1
+        losses['loss_2'] = loss_2
+```