# 训练集正负样本

[lilangyi]

1. 如果我想要在VOC格式训练集中加入负样本，请问是直接把负样本图片加入在JPEGImages文件夹下吗，需要生成对应的空白xml文件吗？

[jingtianyilong]

https://github.com/argusswift/YOLOv4-pytorch/blob/c508af33ab4a5abb588f67c1e04237abc17af4e2/utils/datasets.py#L79-L92

Yes. You need labels with no object inside. But watch carefully as here's an assert about empty label, you can't just gen a empty xml imo.

[Ixixuw]

1. 如果我想要在VOC格式训练集中加入负样本，请问是直接把负样本图片加入在JPEGImages文件夹下吗，需要生成对应的空白xml文件吗？

@lilangyi 你好，你把负样本添加进去了吗，你的负样本的xml文件是怎么设计的呢

[bartproo]

@jingtianyilong do u have any idea how to add negative sample?