I don’t know why the it has 1207 images.I have stored through loop with i value 3064.
Why this happening I don’t know.This is how i stored in one mat file:
% % Making single mat file for all images detail
for i=1:3064
    fname = strcat('data/figshareBrainTumorDataPublic/',num2str(i),'.mat')
    load(fname)
    label(i) = cjdata.label;
    PID(i) = {cjdata.PID};
    image(i,:,:) = cjdata.image;
     tumorBorder(i,:) = cjdata.tumorBorder;
     tumorMask(i,:,:) = cjdata.tumorMask;
end
% save('data/figshareBrainTumorDataPublicNewSingle/data.mat', 'label', 'PID', 'image', 'tumorMask');
 save('data/figshareBrainTumorDataPublicNewSingle/data.mat', 'label', 'PID', 'image', 'tumorBorder', 'tumorMask');