Frequency separation is a photo editing technique used to retouch images by separating the high-frequency details (like skin texture and fine lines) from the low-frequency tones (such as colors and shadows). This method allows for precise adjustments to the skin, eyes, and hair without affecting the overall color or tonal structure of the image. By managing these two frequencies independently, editors can create smoother skin while preserving the natural texture, making it essential for enhancing portraits, restoring damaged photos, and improving layer masks.
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