9.6. Dilate

9.6.1. Overview

Рисунок 17.187. Dilate

Dilate

Original image

Dilate

Filter «Dilate» applied


This filter widens and enhances bright areas of the active layer or selection.

For every image pixel, it brings the pixel Value (luminosity) into line with the upper value (the brightest) of the 8 neighbouring pixels (3x3 matrix). So, a bright pixel is added around bright areas. An isolated pixel on a brighter background will be deleted. A larger bright area will dilate by one pixel in all directions.

On complex images, bright areas are widened and enhanced the same, and somewhat pixellated.

On a solid background, this filter can delete noise:

Рисунок 17.188. «Dilate» example

«Dilate» example


9.6.2. Activating the filter

This filter is found in the image window menu under FiltersGenericDilate.

9.6.3. Examples

Рисунок 17.189. Dilate neon effect

Dilate neon effect