low resolution using 'visible off' and save the figure

Hi:

I met a problem with the display of the figure resolution between the figure plotted by Matlab and figure saved to my PC.

if I direct plot a figure with matlab, the resolution is definitely high.

but if I used the command: f = figure('visible','off'), and save the figure to my PC, the resolution is obviously lower than what I plotted with MATLAB.

I guess there might have somewhere to set the resolution, but I do not know how.

could anyway help me about this?

Thanks!

Li

[Walter Roberson]

Which steps are you using to save the figure?

[Yu Li]

hi: below are the steps:

    f = figure('visible','off');
    contour(xxx)
    fig_name='abc.jpg';
    saveas(f,fig_name,'jpg')

Thanks! Li