Computer Graphics World - Don’t Destroy Those Pixels! Five Non-Destructive Photoshop Techniques

Computer Graphics World - Don’t Destroy Those Pixels! Five Non-Destructive Photoshop Techniques
By Stephen Farnow

“Your pixels never did anything to hurt you, did they? You, on the other hand, are likely roughing them up every time you enhance an image. Directly adjusting color, contrast, or focus, all staples of image digital enhancement, physically alters your original data (i.e. munches your pixels). Now you may not really care all that much about your pixels but you will when you realize you’d like a “do over” and they shrug and say “so sorry.” Fortunately, Photoshop has a whole host of techniques that fall under the category of nondestructive editing or NDE. They allow you to make all the changes you want without ever touching your original data, and you can go back and do touch ups later.”

These are things Photoshop users need to know.

http://www.cgw.com/Press-Center/Web-Exclusives/2010/Don-t-Destroy-Those-Pixels-Five-Non-Destructive-.aspx