> For the complete documentation index, see [llms.txt](https://docs.timeinpixels.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.timeinpixels.com/nobe-color-remap/guide/luma-grid-and-remapping.md).

# 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)