csv-reader/README.md

# csv reader

*author: junjie.jiang*

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## Desription

Wrapper of python csv: https://docs.python.org/3.8/library/csv.html

The parameters are consistent with csv.reader

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## Code Example

### Example

```python
from towhee import DataLoader, pipe, ops
p = (
    pipe.input('image_path')
    .map('image_path', 'image', ops.image_decode.cv2())
    .map('image', 'vec', ops.image_embedding.timm(model_name='resnet50'))
    .output('vec')

)

# csv data format: id,image_path,label
for data in DataLoader(ops.data_source.csv_reader('./reverse_image_search.csv'), parser=lambda x: x[1]):
    print(p(data).to_list(kv_format=True))

# batch
for data in DataLoader(ops.data_source.csv_reader('./reverse_image_search.csv'), parser=lambda x: x[1], batch_size=10):
    p.batch(data)
```




**Parameters:**


***f_path:*** *str*

csv file path