size

Return size of points object

Syntax

size(points)

sz = size(points)

sz = size(points,1)

sz = size(points,dimension)

[M,N] = size(points)

Description

size(points) returns the size of the points object.

sz = size(points) returns the vector [length(points), 1].

sz = size(points,1) returns the length of points.

sz = size(points,dimension) returns the length of the dimension.

[M,N] = size(points) returns length(points) for M and 1 for N

Examples

Find Size of Points Object

Read an image.

I = imread('cameraman.tif');

Detect corner features.

featurePoints = detectHarrisFeatures(I);

Find the size of the feature points object.

sz = size(featurePoints)

sz = 1×2

   184     1

Plot feature image with detected features.

imshow(I); hold on;
plot(featurePoints);

Input Arguments

points — Points object

KAZEPoints object | CornerPoints object | BRISKPoints object | SURFPoints object | MSERRegions object | ORBPoints object | SIFTPoints object

Points object, specified as a points object. The object contains information about the feature points detected in the input image. To obtain points, use the appropriate detect function.

dimension — Dimension

integer

Dimension, returned as an integer. For dim >= 2, the object returns 1.

Version History

Introduced in R2012a