Extracting files saved in .mat file

I have saved a set of images in a single .mat file and also generate a txt file contains the filenames of the images that have been saved in the .mat file. I am looking to be able to extract the images from the .mat file. Any help would be welcome. I have attached the code here.

function saveimage()

[fname,pname] = uigetfile('*.*','Pick an Image File','MultiSelect','on');
if isequal(fname,0)
    warndlg('Program has been exited without any files being selected','!! Warning !!');
    return;
end
if ischar(fname)
  fname = {fname}; % If a single image was selected
end

k=0;
l = length(fname); 
for i = 1:l
    currentimage = imread([pname fname{i}]); 
    imgs(i).currentimage=currentimage;
    fprintf(fout, '\r');  fprintf(fout, fname{i}); 
    k=k+1;
end

save([foutpath num2str(k),'_',num2str(dt),'_Images.mat'], 'imgs');
if (l > 1)
    message   =   sprintf([num2str(k) ' images successfully saved\n\nResults are saved in ' strrep(foutpath, '\', '\\') '\n\n        Click OK to continue']);
    uiwait(msgbox(message));
else
    message   =   sprintf([num2str(k) ' image successfully saved\n\nResults are saved in ' strrep(foutpath, '\', '\\') '\n\n        Click OK to continue']);
    uiwait(msgbox(message));
end

return

Answer 1

[Swati Tiwari]

You should be able to load the image matrix into the MATLAB workspace using the LOAD function.

var = load('filename.mat');

As per your function, var would most likely be a structure array and the field 'currentimage' would correspond to your image file which you can then write to an image file using the IMWRITE function.

imwrite(var(1).currentimage, 'filename', '<format>')

I would recommend reading the documentation on LOAD and IMWRITE.

HTH

[Ram]

Thank you the answer. When I try to extract the file, I get the following error: Reference to non-existent field 'currentimage'.

thanks for inputs

[Jan]

@Ram: If the variable var (better use a name which does not shadow a built-in function) does not contain the field 'currntimage', take the chance to check, what it contains instead:

data = load('filename.mat');
data

[Ram]

Thank you for the response. I am now able to load them and view the images. The field is 'imgs.

[Image Analyst]

Hmmm... Looks like Ram needs to look at this so he can learn how to see what's in variables: http://blogs.mathworks.com/videos/category/gui-or-guide/

Answer 2

[poongothai rajan]

my file name is te.mat..i can able to read data from my file...but i couldnot view my images...can u give me code for view my .mat file as images