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Object detection converts

Objects365 annotations 2 xml

1. 数据准备

Objects365数据集共两个版本:2019 Objects365目标检测数据集,2020 Objects365物体检测数据集

注:数据转换使用2019版本

数据目录结构:

/path/to/objects365
    Annotations
        train
            train.json
        val
            val.json
    Images
        train
            *.jpg
        val
            *.jpg

数据标签对应参考:object365_dict.txt

2. 数据处理

所需文件:obj365_main.py,object365_to_voc.py和object365_dict.txt

python obj365_main.py -i "/obj365" -o "output/obj365" -c 80 92 97 

其中 -i 为数据集输入路径,-o为转换输出路径,-c为类别序号,对应在object365_dict.txt中,可根据实际情况进行选择。

3. 数据输出

输出目录结构如下:

/path/to/output
    annotations_xml_train                   // 标注目录
        xxx.xml                             // 标注文件
        yyy.xml                             // 标注文件
    annotations_xml_val                     // 标注目录
        xxx.xml                             // 标注文件
        yyy.xml                             // 标注文件            
    annotations_xml_object365_train.txt          
    annotations_xml_object365_val.txt            

其中列表文件格式

   XML文件路径 图片路径 [类别1 类别2 ...]

XML文件路径为相对于输出目录的相对路径,图片路径为相对于输入目录的相对路径

COCO annotations 2 xml

1. 数据准备
/path/to/coco
    Annotations
        instances_train2017.json
        instances_val2017.json
    Images
        train2017
            *.jpg
        val2017
            *.jpg
2. 数据处理

所需文件:coco_to_voc.py,coco_classes.txt

python coco_to_voc.py

其中数据集路径,数据保存路径以及训练集验证集可自行选择

3. 数据输出

输出目录结构如下:

/path/to/output
   Annotations                             // 标注目录
        xxx.xml                             // 标注文件
        yyy.xml                             // 标注文件
   Iamges
        xxx.jpg
        yyy.jpg

xml数据划分-xml_split.py

可自行划分训练集与验证集,也可使用官方划分方式,之后生成包含图片名称的train.txt,val.txt,test.txt,trainval.txt

xml数据筛选-xml_select.py

将多余的标签删除,而不影响其它标签的使用

xml数据统计与改变标签名-xml_counter_change.py

可统计指定文件夹下所有xml数据,统计每个类别数量,也可改变一个或多个类别标签名,也可一次性全部更改

xml数据转换为yolo格式的txt数据-voc_to_yolo.py

将xml数据转换为yolo所需的txt格式,其中需要将xml数据与图片数据放到各自的路径下,以及划分后的训练集,验证集文档

注:此部分采用官方VOC数据集的路径,需将数据放到指定文件下,也根据实际情况更改路径

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