circlecv

Syntax

circlecv(handle, center, radius, color...)

circlecv(handle, center, radius, color, thickness, type, shift)

Inputs

handle

Handle of the image.

Type: integer

center

Two-element vector of integers representing the center of the circle to be drawn.

Type: vector

radius

Radius of the circle. The value must be a positive integer.

Type: integer

color

Three element vector of integers representing red, green blue (RGB) colors that the circle will be drawn in.

Type: vector

thickness

Optional parameter specifying the thickness of the circle. Default value of thickness is 1.

Type: integer

type

Optional parameter specifying the line type. Default value is 8 and valid values are:

1

Filled line.

4

Line is drawn using 4-connected Bresenham algorithm.

8(default)

Line is drawn using 8-connected Bresenham algorithm.

16

Antialiased line.

Type: integer

shift

Optional parameter specifying number of fractional bits. Default value is 0.

Type: integer

Example

Draw a red circle with thickness 12 in an image :

handle = imreadcv('1.jpg');
circlecv(handle, [300, 150], 51, [255 0 0], 12);