Python OpenCV | cv2.ellipse() method
OpenCV-Python is a library of Python bindings designed to solve computer vision problems.
cv2.ellipse() method is used to draw a ellipse on any image.
Syntax: cv2.ellipse(image, centerCoordinates, axesLength, angle, startAngle, endAngle, color [, thickness[, lineType[, shift]]])
image: It is the image on which ellipse is to be drawn.
centerCoordinates: It is the center coordinates of ellipse. The coordinates are represented as tuples of two values i.e. (X coordinate value, Y coordinate value).
axesLength: It contains tuple of two variables containing major and minor axis of ellipse (major axis length, minor axis length).
angle: Ellipse rotation angle in degrees.
startAngle: Starting angle of the elliptic arc in degrees.
endAngle: Ending angle of the elliptic arc in degrees.
color: It is the color of border line of shape to be drawn. For BGR, we pass a tuple. eg: (255, 0, 0) for blue color.
thickness: It is the thickness of the shape border line in px. Thickness of -1 px will fill the shape by the specified color.
lineType: This is an optional parameter.It gives the type of the ellipse boundary.
shift: This is an optional parameter. It denotes the number of fractional bits in the coordinates of the center and values of axes.
Return Value: It returns an image.
Image used for all the below examples:
Using thickness of -1 px and rotation of 30 degrees.
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