jm-net wrote:
> Is there an alternative product to Corel Knock Out with an
> affordable price or free?

I advise to learn to use PS's extract filter. The other main alternative to Knockout is Mask Pro 3 and it is twice the price. Most here use other methods, mainly:

Replacing backgrounds
Gurus network
http://www.gurusnetwork.com/tutorial/replace_background/
Russell Brown
http://www.russellbrown.com/tips/moviesps/AdvancedBackgroundExtract.mov
Gazza
http://forums.dpreview.com/forums/read.asp?forum=1006&message=4696023
http://forums.dpreview.com/forums/read.asp?forum=1006&message=4936680
Extract filter
http://www.photoshopcafe.com/tutorials/cutout/cutout.htm
CS extraction using ‘textures’
http://forums.dpreview.com/forums/read.asp?forum=1006&message=7766841
Bud G.
http://www.retouchpro.com/tutorials/background/index.html
Randy
http://forums.dpreview.com/forums/read.asp?forum=1006&message=7210064
Kelby’s extraction
http://www.techtv.com/screensavers/print/0,23102,3358452,00.html
JJ on changing backgrounds – light and dark
http://mouseprints.net/old/dpr/ReplaceBG.html
http://forums.dpreview.com/forums/read.asp?forum=1006&message=6401066
http://forums.dpreview.com/forums/read.asp?forum=1006&message=7355380
white background discussion – series of post me/jjmack
http://forums.dpreview.com/forums/read.asp?forum=1006&message=7321615

Replacement in darken mode
http://forums.dpreview.com/forums/read.asp?forum=1006&message=5892762
http://forums.dpreview.com/forums/read.asp?forum=1006&message=5370107
Extraction –Lynch PSEII
http://forums.dpreview.com/forums/read.asp?forum=1006&message=5046210

Quick mask selection (when there’s no hair or similar problems)

http://www.grafx-design.com/12photo.html

Masking hair – Martin Evening

http://www.photoshopforphotographers.com/pscs/download/Chapter07_movie05.pdf


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Kent
http://www.pbase.com/kentc