Gauging and exploiting luminance frequency


show more Gauging and exploiting luminance frequency provides you with in-depth training on Photography. Taught by Deke McClelland as part of the Photoshop CS3 Sharpening Images show less
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Gauging and exploiting luminance frequency

Now that you have finished sharpening for the source- or not, up to you. It's time to move on to the second and I think more important phase of the sharpening process, sharpening for detail. Rather than compensating for anti-aliasing or interpolation or the like, we are interested in bolstering the most essential and pervasive detail inside the image all in the name of increasing the impact of a photograph or composition. The character of that detail is measured in terms of frequency. In a low frequency image, highlights transition gradually into mid-tones and then shadows. Think of a smooth sphere or a person's face.

In a high frequency image, highlights change the shadows frequently and abruptly. Imagine a thicket of branches, a crowded street scene or any wide angle shot that contains multiple points of interest. If an image falls somewhere in the middle, as most do, then it probably has a predominant frequency that determines the kind of sharpening that you should apply. Like me, ag...

Gauging and exploiting luminance frequency
Video duration: 1m 26s 10h 36m Intermediate

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Gauging and exploiting luminance frequency provides you with in-depth training on Photography. Taught by Deke McClelland as part of the Photoshop CS3 Sharpening Images

Subject:
Photography
Software:
Photoshop
Author:
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