how to read images stored in mat files using variables

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Lakshmi 2013-8-2

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https://ww2.mathworks.cn/matlabcentral/answers/83808-how-to-read-images-stored-in-mat-files-using-variables

评论： Walter Roberson 2017-11-9

I have a set of images stored in mat file. In the program I have a variable using which i need to the corresponding image file in mat.

For Example :

I = imread('1.jpg'); 
J = imread('2.jpg'); 
save imgs.mat
a = 'I';
imshow(a); --- this should get the image I from mat file displayed. But I am getting the error message 
Cannot find the specified file: "I"

How to do this ?

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采纳的回答

Walter Roberson 2013-8-2

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https://ww2.mathworks.cn/matlabcentral/answers/83808-how-to-read-images-stored-in-mat-files-using-variables#answer_93392

在 MATLAB Online 中打开

input_data = load('imgs.mat', a);
imshow(input_data.(a))

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Melaku Eneayehu 2017-11-7

Undefined function or variable 'a'

Walter Roberson 2017-11-9

在 MATLAB Online 中打开

The user had done,

a = 'I';

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