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size

Return size of points object

Description

example

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

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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);

Figure contains an axes object. The axes object contains 2 objects of type image, line.

Input Arguments

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Points object,specified as an M-by-2 matrix of M number of [x y] coordinates, or 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, returned as an integer. For dim >= 2, the object returns 1.

Version History

Introduced in R2012a