Matlab save image

%set the width and height of the figure windows
width = 6;
height = 3;

%set the size of figure window to be displayed
figure('unit','inch','position',[1,1,width,height]);

%plot your figure here

%set the size of figure to be saved
set(gcf,'InvertHardcopy','on');
set(gcf,'PaperUnits', 'inches');
papersize = get(gcf, 'PaperSize');
left = (papersize(1)- width)/2;
bottom = (papersize(2)- height)/2;
myfiguresize = [left, bottom, width, height];
set(gcf,'PaperPosition', myfiguresize);

%save your figure
print('myfigure','-djpeg','-r600'); %resolution 600 dpi
%or save your figure to pdf
print('myfigure','-dpdf');
%or save your figure to svg
print('myfigure','-dsvg');