fileID = fopen('yourfile.txt','rt');
data = textscan(fileID,'%s','delimiter','\n');
C = data{1} ;
fclose(fileID);
IdxC = strfind(C, 'images');
Idx = find(not(cellfun('isempty', IdxC)));
nimages = length(Idx) ; % total number of images
iwant = struct ; % initialize structure
for i = 1:nimages-1
iwant(i).name = C{Idx(i)} ;
iwant(i).no_objects = str2num(C{Idx(i)+1}) ;
iwant(i).bounding_box = C((Idx(i)+2):(Idx(i+1)-1)) ;
end
iwant(nimages).name = C(Idx(nimages)) ;
iwant(nimages).no_objects = C(Idx(nimages)+1) ;
iwant(nimages).bounding_box = C(Idx(nimages)+2:end) ;
