Splitting an image into low and hi frequencies

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Netaddict

Joined: 16 Feb 2011
Posts: 332
Location: Earth
PS Version: CS6
OS: Windows 7 Professional

Posted: Thu May 23, 2013 1:30 am Post subject: Splitting an image into low and hi frequencies

I know a high frequency sound is one that is high pitched, low is a deeper sound. What do high and low frequencies in image look like and why is it useful to split an image into the hi and lo components?

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