im trying to make array of images s1,s2,s3 and s4 and want to show them in different figures ........... what is wrong over there? .........

clc close all clear all arr={s1,s2,s3,s4}; for i=1:4 b=imread(arr{i}); figure,imshow(arr{i}); end

Answer 1

[Iman Ansari]

clear
arr={s1,s2,s3,s4}; 
for i=1:4 
b=imread(arr{i}); 
figure
imshow(b); 
end

[moniba qureshi]

still same error........"??? Undefined function or variable 's1'." however s1 is image saved in work area

[Iman Ansari]

What is its extension? '.jpg' , '.tif' , '.png' , '.gif'

full file names:

arr={'s1.jpg','s2.tif','s3.png','s4.gif'};

Answer 2

[Image Analyst]

s1, s2, s3, and s4 need to be strings that contain the actual filenames. If you do that, it will work. For example:

% Define the filenames:
s1 = 'moon.tif';
s2 = 'cameraman.tif';
s3 = 'peppers.png';
s4 = 'football.jpg';

arr={s1,s2,s3,s4};
% Display each in a new figure.
for i=1:4
    b=imread(arr{i});
    figure;
  imshow(arr{i});
end

You may be interested in the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F