4.9. Mosaic
| 4. Distort Filters |

### 4.9. Mosaic

#### 4.9.1. Overview

Figure 16.55. Applying example for the “Mosaic” filter

Original image

Filter “Mosaic” applied

It cuts the active layer or selection into many squares or polygons which are slightly raised and separated by joins, giving so an aspect of mosaic.

#### 4.9.2. Starting filter

You can find this filter through Filters → Distorts → Mosaic.

#### 4.9.3. Options

Figure 16.56. “Mosaic” filter options

Preview

  All your setting changes will appear in the Preview without affecting the image until you click on OK. Note that the preview displays the whole image, even if the final result will concern a selection. Don't keep Do Preview checked if your computer is too much slow.

Options
  Antialiasing

    This option reduces the stepped aspect that may have borders.

  Color Averaging

    When this option is unchecked, the image drawing can be recognized inside tiles. When checked, the colors inside tiles are averaged into a single color.

  Allows Tile Splitting

    This option splits tiles in areas with many colors, and so allows a better color gradation and more details in these areas.

  Pitted Surfaces

    With this option tile surface looks pitted.

  FG/BG Lighting

    When this option is checked, tiles are lit by the foreground color of the toolbox, and shadow is colored by the background color. Joins have the background color.

Parameter setting
  Tile Size

    Slider and input box allow you to set the size of tile surface.

  Tile Height

    That's ledge, relief of tiles. Value is width of the lit border in pixels.

  Tile Spacing

    That's width of the join between tiles.

  Tile Neatness

    When set to 1, most of tiles have the same size. With 0 value, size is determined at random and this may lead to shape variation.

  Light Direction

    By default light comes from the upper left corner (135°). You can change this direction from 0 to 360 (counter clockwise).

  Color Variation

    Color Variation: Each tile has only one color. So, the number of colors is reduced, compared to the original image. Here, you can increase the number of colors, a little.

Tile Primitives

  This options are self-understanding:

  - Squares

  - Hexagons: (hexa = 6)

  - Octagons and Squares: (octa = 8)

  - Triangles: (tri = 3)

4.8. Lens Distortion |  | 4.10. Newsprint