Opencv cvCircle函数

最新推荐文章于 2024-08-27 10:07:03 发布

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本文详细介绍了cvCircle函数的使用方法及参数含义。该函数用于在指定图像上绘制圆形，包括圆心位置、半径大小、颜色及线条粗细等属性均可自定义。适合于需要在图像中添加标记的应用场景。

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void cvCircle (CvArr* img, CvPoint center, int radius, CvScalar color, int thickness=1, int line_type=8, int shift=0 )

Parameters:

Parameters:	img – Image where the circle is drawn. center – Center of the circle. radius – Radius of the circle. color – Circle color. thickness – Thickness of the circle outline, if positive. Negative thickness means that a filled circle is to be drawn. lineType – Type of the circle boundary. See the `line()` description. shift – Number of fractional bits in the coordinates of the center and in the radius value.

img – Image where the circle is drawn.
center – Center of the circle.
radius – Radius of the circle.
color – Circle color.
thickness – Thickness of the circle outline, if positive. Negative thickness means that a filled circle is to be drawn.
lineType – Type of the circle boundary. See the line() description.
shift – Number of fractional bits in the coordinates of the center and in the radius value.