Advanced Sharpening Techniques #3 : Luminance sharpening

Sharpening images is the endpoint of the photographic workflow, be it for print or screen. However, as a process it is always a trade-off between the level of desired contrast and artefacts. However, we can reduce the compromise with a technique called luminance sharpening, which only sharpens an images detail -- known as the luminance data.

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Advanced Sharpening Techniques # 2: Selective Sharpening

All Photoshops’ sharpening options have a common weakness, they apply sharpening values equally across the entire image. However, through selective sharpening, we can selectively control the degree of sharpness to any area of the image, applying and fine tuning different degrees to different elements.

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Advanced sharpening techniques #1 ; High Pass Filter

The High Pass is Photoshop’s most powerful and simple sharpening filter, however isn’t even listed in the Sharpen filters. Although not a technically a sharpening filter, High Pass often delivers superior results; producing sharper images, with less noise and artefacts than the ‘usual suspect’ filters like the Unsharp Mask.

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