Custom Dataset

[jjunsss]

thank you for your repo !

I have a question.

• How can I get Oriented Bounding Box annotation dataset?

• I want to get OBB annotation format from Segmentation format, Do you know this method?

[Wangfeng2394]

斜框标注软件一大堆， 分割数据集转斜框，自己写脚本，别张口要代码

[Avant-Gardiste]

@junsukim97 Hi, you can use rolabelimg (https://github.com/cgvict/roLabelImg) to directly get rotated bounding box, but you'll have to transform the coordinates format, because rolabelimg will give this kind of annotations (class,cx, cy, width, height, angle), and you will need to convert it to get the 4 coordinates corners or you rotated bbox (x1,y1,x2,y2,x3,y3,x4,y4,class). Or you can une use roboflow, label your object with polygon and export your final annoations to yolov5_obb and you'll get what you need !

[hukaixuan19970627]

You can search the tool on GitHub: https://github.com/search?q=Segmentation+to+polygon

[yuanzhougege]

请问我想使用hrsc2016数据集 我应该在训练前怎么准备，这个xml格式的不知道怎么去改城txt带角度的

[jjunsss]

I didn't want to code.

so I have just made it Polygon2OBB annotation work.

Link : https://github.com/junsukim97/Poly2Obb Polygon annotation to Obb points result points : [[x1, y1], [x2, y2], [x3, y3], [x4, y4]]

[ryouchinsa]

RectLabel is an offline image annotation tool for object detection and segmentation. Although this is not an open source program, with RectLabel, you can draw oriented bounding boxes and export to the DOTA OBB format.

x1 y1 x2 y2 x3 y3 x4 y4 category difficult
1300.536987 1413.503784 1192.848755 1535.568848 530.876038 951.562073 638.564270 829.497009 truck 0