about save-txt in yolov5-seg

[Powerfulidot]

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Question

when activating "save-txt" in yolov5-seg.py, a txt with the coordinates of the predicted region is saved, but i found that the coordinates seem not to be in sequence, that is to say when i use fillpoly in opencv, the coordinates seem unable to form a polygon like the one of prediction. is there a way to make the coordinates in sequence?

我发现启用save-txt后保存的包含预测分割区域的txt里的坐标似乎不是按顺序的（指坐标的保存顺序不是围着分割区域的）？用opencv的fillpoly填充出来的也跟预测的区域不一样。有办法把坐标变成按顺序的吗？

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[UltralyticsAssistant]

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[Powerfulidot]

UPDATE: my current method is to fill the polygon by the coordinates, then use minAreaRect in OpenCV to form a minimum bounding rectangle of the polygon, then use boxPoints and order_points in imutils to get the coordinates of 4 vertexs. BUT this feels kinda junky. anybody has better method?

我目前的做法是用坐标填充出多边形，然后用opencv的minAreaRec生成该多边形的最小外接矩形，然后用boxPoints和imutils的order_points得到该矩形的四个顶点坐标。但是这做法感觉有点糙，有人有更好的办法吗？

[glenn-jocher]

@Powerfulidot you might consider using OpenCV's convexHull to order the points correctly for polygon formation. This can help streamline your process and ensure the coordinates form a proper shape. If the issue persists, please verify with the latest YOLOv5 version.

[Powerfulidot]

@Powerfulidot you might consider using OpenCV's convexHull to order the points correctly for polygon formation. This can help streamline your process and ensure the coordinates form a proper shape. If the issue persists, please verify with the latest YOLOv5 version.

convexhull does work! thanks a lot!

[glenn-jocher]

Great to hear that worked for you! If you have any more questions or need further assistance, feel free to ask.

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