How to put an image into an array? [duplicate]

Question

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importing multiple images matlab (1 answer)

Closed 7 years ago.

I have this matlab function which is supposed to label connected components in an image. Here is the question: How can I give input to this function?

function [ component_num, c ] = i4mat_components ( m, n, a )  

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Answer 1

You simply need something along the lines of:

a = imread('my_epicly_awesome_picture.jpg');

EDIT

To clarify, you can call your function like so:

a = imread('tiger.jpg');
%If your input image is RGB and you want grayscale:
%a = rgb2gray(a);
[m, n] = size(a);
[component_num, c] = i4mat_components(m, n, a);

Answer 2

Though this would be quite strange, it appears that the function requires both the image and its size as inputs.

So suppose your image is called myimage, then the functioncall would be:

[component_num,c] = i4mat_components (size(myimage,1), size(myimage,2),myimage )