size

Return size of points object

Syntax

sz = size(points)

sz = size(points,1)

sz = size(points,dimension)

[M,N] = size(points)

Description

sz = size(points) returns the size of the points object. sz is defined as the vector [length(points),1].

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

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

point feature object

Points object,specified as one of the point feature objects described in Point Feature Types. The object contains information about the feature points detected in the input image. To obtain points, use the appropriate detect function that pairs with the point feature type.

dimension — Dimension

integer

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

Version History

Introduced in R2012a