can u please tell how to clear it

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poongothai rajan
poongothai rajan on 23 Apr 2014
Commented: Image Analyst on 23 Apr 2014
% Load entire mat file contents into a structure. % The structure has a member "I" that is a double 512x512 array. storedStructure = load('te.mat');
Reference to non-existent field 's'.
Error in Untitled3 (line 7) imageArray = storedStructure.s.I; % Or storedStructure.I depending on what members your structure has.
% Extract out the image from the structure into its own variable. % Don't use I as the variable name - bad for several reasons. imageArray = storedStructure.s.I; % Or storedStructure.I depending on what members your structure has.
% Display the image in a brand new figure window. figure(1); % Display double image, scaled appropriately. % No need to cast to uint8 - could even be bad % if your double numbers don't span the 0-255 range nicely. imshow(imageArray, []);

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Accepted Answer

Image Analyst
Image Analyst on 23 Apr 2014
Just have storedStructure be on its own line after you call load. See what fields it reports to the command window. Then I think you'll see what member to extract. Maybe there is no "s" field and it's called something else, like "I" or "imageArray".
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poongothai rajan
poongothai rajan on 23 Apr 2014
Edited: Image Analyst on 23 Apr 2014
thank you so much...when i run i load my .mat i got the fields like
GalleryDataSetC: [2784x50 double]
TestingTargetDataSetC: [2784x134 double]
TrainingTargetDataSetC: [2784x292 double]
CountOfGalleryTargetSamples: [1x50 double]
CountOfTestingTargetSamples: [1x50 double]
CountOfTrainingTargetSamples: [1x69 double]
but i want images ..can u please clarify once
actually sir..i have a database with .mat file...but i could not implement my code with full database because its very large my lap get hang...i just want to reduce the images...for this only am asking how to view the images
Image Analyst
Image Analyst on 23 Apr 2014
Which one of those fields is an image? Can you do this:
theImage = storedStructure.TestingTargetDataSetC;
imshow(theImage);

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