"John Russell" wrote in message
What is interpolation? Is it available in photoshop 7?
It's a mathematical operation to determine a value from two or more nearby values. It is normally associated with the resizing an image, and Photoshop 7 supports three types: nearest neighbor, linear, and bicubic. Only bicubic is normally used, the other modes two are left over from the days of slower CPU's.
Interpolation is really a basic technique that is not limited to image resizing, and almost every operation uses it in some form or another.
Photoshop definitely uses it.
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Mike Russell
www.curvemeister.com