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Asked: 2026-05-20T05:15:35+00:00

How can I represent an image as a matrix in Matlab?

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How can I represent an image as a matrix in Matlab?

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  1. Editorial Team

    As soon as you’ve loaded the image into Matlab, it is represented as a matrix. For example

    >> A = imread('peppers.png');
>> size(A)
ans =
   384   512     3

    A is a 384-by-512-by-3 array, representing an RGB image, where e.g. A(:,:,1) is the red channel

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