3.7. Pixelize
| 3. Blur Filters |

### 3.7. Pixelize

#### 3.7.1. Overview

Figure 17.22. Example for the “Pixelize” filter

Original

“Pixelize” applied

The Pixelize filter renders the image using large color blocks. It is very similar to the effect seen on television when obscuring a criminal during trial. It is used for the “Abraham Lincoln effect”: see [BACH04].

#### 3.7.2. Activate the filter

You can find this filter in the image menu through Filters → Blur → Pixelize…

#### 3.7.3. Options

Figure 17.23. “Pixelize” filter options

Presets, “Input Type”, Clipping, Blending Options, Preview, Split view

  | Note
  These options are described in Section 2, “Common Features”.

Shape

  TODO. Not working

Block width, Block height

  Here you can set the desired width and height of the blocks, in pixels.

  By default, width and height are linked, indicated by the chain symbol next to the input boxes. If you want to set width and height separately, click on that chain symbol to unlink them.

Size ratio X, Size ratio Y

  Horizontal/Vertical size ratio (0.000-1.000) of a pixel inside a block. Default value is 1.000. The number of blocks remains the same; so, if you change ratio, block size changes, and missing pixels are replaced with the background color.

Background color

  Default background is that of toolbox. You can change it by clicking on color source or picking a color using the color picker on the right.

3.6. Median Blur |  | 3.8. Selective Gaussian Blur

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