Skip to content
Retouching

Frequency Separation

An advanced retouching technique that separates texture detail from color and tone, allowing independent editing of each layer.

Frequency separation splits an image into two layers: a high-frequency layer containing fine detail like skin texture, pores, and hair, and a low-frequency layer containing broad color and tonal gradients. Retouchers can smooth skin color unevenness on the low-frequency layer without destroying natural skin texture, and they can fix texture blemishes on the high-frequency layer without affecting color. This produces natural-looking skin retouching that avoids the plastic appearance caused by global blur. Professional beauty retouchers use frequency separation extensively for editorial and advertising work. The technique requires careful execution — over-smoothing the low-frequency layer creates an uncanny valley effect where skin looks too perfect.

Related Tools