# Luma Grid and Remapping Examples

The Luma grid is the second main control. It allows **luminosity** and **saturation** remapping.

![](https://timeinpixels.com/wp-content/uploads/2018/10/luma_grid_desc2.jpg)

## Grid Actions

The Luma section has two hamburger menus, one for each sub-grid, so actions can be applied independently.

For operations like **Saturate** and **Smooth**, you can link both grids and apply the same change to both.

![](https://timeinpixels.com/wp-content/uploads/2018/10/luma_context_menu2.jpg)

## Color Distribution

Enable color distribution to visualize which colors are present in the image and where they land in the grid:

![](https://timeinpixels.com/wp-content/uploads/2018/10/color_dist_on_off2.jpg)

## Luma-Saturation Remapping Examples

### Example 1: Darken the Sky

In the blue sub-grid, drag the top-right point downward (brightest + most saturated blue range) to reduce sky luminosity:

![](https://timeinpixels.com/wp-content/uploads/2018/10/before-1.jpg) ![](https://timeinpixels.com/wp-content/uploads/2018/10/dark_blue.jpg)

### Example 2: Compress Mid-Green Contrast

Drag middle-green points downward to compress luminosity into lower values and pull brighter values down:

![](https://timeinpixels.com/wp-content/uploads/2018/10/before-1.jpg) ![](https://timeinpixels.com/wp-content/uploads/2018/10/green_contrast.jpg)

### How Saturation Works in the Luma Grid

* Luminosity changes vertically (top = brighter, bottom = darker).
* Saturation changes horizontally (center = neutral, left/right = more saturated).

Dragging points toward the center line desaturates. Dragging away from center increases saturation.

### Example 3: Desaturate Bright Greens

In the second grid, drag the top-left point toward the center to desaturate bright green highlights:

![](https://timeinpixels.com/wp-content/uploads/2018/10/before-1.jpg) ![](https://timeinpixels.com/wp-content/uploads/2018/10/green_high_desat.jpg)

### Example 4: Desaturate Red Shadows

Drag the bottom-left red-region point toward the center to reduce saturation in red shadows:

![](https://timeinpixels.com/wp-content/uploads/2018/10/before-1.jpg) ![](https://timeinpixels.com/wp-content/uploads/2018/10/red_desat.jpg)


---

# 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-color-remap/guide/luma-grid-and-remapping.md?ask=<question>
```

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.