You can do it. You know the paint thing on your computer put your picture on it and take a picture of someone who s skinnier,and yous the cut and paste tools to cut of your body, and copy and paste the other dudes body on you.
I wouldn t say that those things are reliable. You should want to lose weight to look and feel better. Starting a healthy regimen will add years to your life and safeguard against cancer. I would think that would be motivation enough. Do it for yourself, not for how you think you might look when it is done with. If you do it for the wrong reasons, rest assured that you will be able to see that weight fly right back on without the aid of computer imaging.