linecv

Syntax

linecv(handle, startpoint, endpoint, color...)

linecv(handle, startpoint, endpoint, color, thickness, type, shift)

Inputs

handle

Handle of the image.

Type: integer

startpoint

Two-element vector of integers representing the start point of the line section to draw in handle. The line drawn will be clipped to the size of handle.

Type: vector

endpoint

Two-element vector of integers representing the end point of the line section to draw in handle. The line drawn will be clipped to the size of handle.

Type: vector

color

Three element vector of integers representing red, green blue (RGB) colors.

Type: vector

thickness

Optional parameter specifying the thickness of the line drawn on handle. Default value of thickness is 1.

Type: integer

type

Optional parameter specifying the type of the line drawn on handle. Default value of type is 8. 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 if fractional bits in handle. Default value is 0.

Type: integer

Example

Draw a red line with thickness 12 across the diagonal on an image :


handle = imreadcv('bird4.jpg');
handlesz = imsizecv(handle);
linecv(handle, [0 0], [handlesz(2) handlesz(1)], [255 0 0], 12);