# Skintone Scope ## Overview The SkinTone Scope is a specialized tool for monitoring skin tones. It creates a color qualifier targeting only the skin tone range, offering precision in color grading.

## Color Models The SkinTone Scope features two colour models: * **HSV** (Hue, Saturation, Value) — Ideal for intuitive adjustments because it separates colour (hue) from the non-colour brightness channel (value). * **Y'CbCr** (Luma, Blue-Difference Chroma, Red-Difference Chroma) — Suited for broadcast workflows, working directly on the signal's luma (Y') and colour-difference (Cb, Cr) components. Note that Y' is luma, not scene luminance — it's computed from the non-linear R'G'B' signal.

## Features * **Luma and Saturation Range** — Narrow the range for finer control over skin tones. * **Overlay Modes** — Three visualization options: grid, solid color, or a custom gradient between two selected colors. * **Global Mask** — Apply the skin tone selection as a global mask so all scopes display only the skin tone areas from the active image.

* **Low-Pass Filter** — Smooth out the selection for a more natural look. ## 3-Color Mode with Sharp Transitions (1.10.139+) Adds a three-color overlay mode with sharp transitions for quick pass/fail matching of skin tones. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.timeinpixels.com/nobe-omniscope/scopes/skintone-scope.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.