how to Create a mat file for images

Question

Sharen H 2015-4-10

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/197151-how-to-create-a-mat-file-for-images

评论： Image Analyst 2015-4-12

i have 15 images say x1=[1 2

                     3 4 ]
similarly x2 =[5 6
              3 4 ] , x3 till x15

first i want these to be converted to x1= [ 1

                                  2         
                                  3      
                                  4]            
similarly other matrixes also.

i want to save a mat file called

dark = [ 1 6

       2       7
       3      3   
       4       4]

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Answer 1

Image Analyst 2015-4-10

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/197151-how-to-create-a-mat-file-for-images#answer_174721

在 MATLAB Online 中打开

A mat file called what?

Anyway, to save those variables:

save(matFileName, 'x1', 'x2, 'x3', 'x4', ...
'x5', 'x6', 'x7', 'x8', ...
'x9', 'x10', 'x11', 'x12', ...
'x13', 'x14', 'x15', 'dark');

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Sharen H 2015-4-12

在 MATLAB Online 中打开

my data is i have 15 images of size mxn which has to be converted to 1 x m*n matrix .

then i have to save these in the form of mat file having 15 x m*n matrix. can u

help me to do this in way where i have to call and save using loop because my data

gets increases as it goes on. thanks in advance

Image Analyst 2015-4-12

在 MATLAB Online 中打开

Try this:

x1 = x1(:); % Convert to 1-D
x2 = x2(:); % Convert to 1-D
... etc.
x15 = x15(:); % Convert to 1-D
dark = dark(:); % Convert to 1-D
% Now save them all into a single mat file.
save(matFileName, 'x1', 'x2, 'x3', 'x4', ...
'x5', 'x6', 'x7', 'x8', ...
'x9', 'x10', 'x11', 'x12', ...
'x13', 'x14', 'x15', 'dark');