Need help creating shadows

[GlamGuru]

Hey guys, I don't do much product photography so excuse my ignorance in this department. I want to clean this image up and give it a white background and a nice shadow. How should I go about doing this? I'm also wondering how to fix the shadows underneath the channel of the pillow so it looks more even.

Any suggestions?

[mistermonday]

Hi GlamGuru, the subject can be separated from its current background by using the blue or red channel and at the same time generating a clean mask. (see attached zipped png).
Two methods of generating a shadow would be:\
1. With the sofa isolated on a transparent layer, double click the layer to bring up the Layer Styles dialog box and add a drop shadow with Global light checked.
2. Another method is to enlage the canvas, duplicate the sofa, fill the duplicate with black, flip it vertically, reposition it, and reduce the opacity to render it a shadow.
Regards, Murray

[namphoto]

looks like a sex pillow.

[flexmanta]

Well, it depends. Do you want the shadow to be on the floor? then distort a black filled selection made of the couch, and blur it.

If you want a shadow as if the couch was hanging from the wall, then do what mrmonday says (blurred copy undistorted or layer style)