7.8. Spread

7.8. Spread
	7. 噪音滤镜

7.8.1. Overview

图 17.158. Example of applying the Spread filter

Original image

Filter “Spread” applied

The Spread filter swaps each pixel in the active layer or selection with another randomly chosen pixel by a user specified amount. It works on color transitions, not on plain color areas. No new color is introduced.

7.8.2. Activating the Filter

This filter is found in the main menu under Filters → Noise → Spread….

7.8.3. Options

图 17.159. “Spread” filter options

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

	注意
	These options are described in 第 2 节 “Common Features”.

Horizontal, Vertical

You can set the distance that pixels will be moved along Horizontal and Vertical axis. The axis can be locked by clicking the Chain icon.

Random seed, New Seed

This option controls the randomness of the filter. The Random seed box lets you manually enter a seed for the randomization algorithm used. You can also generate a random seed by pressing the New Seed button. If the same random seed is used in the same situation, the filter produces exactly the same results. A different random seed produces different results.