Dieses Filter erweitert und verbessert die hellen Bereiche der aktiven Ebene oder einer im Bild vorhandenen Auswahl.

For every image pixel, it brings the pixel Value (luminosity) into line with the upper value (the brightest) of the 8 neighboring pixels (3×3 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 pixelated.

Auf einem einfarbigen Hintergrund kann dieses Filter Rauschen entfernen:

This filter is found in the main menu under Filters → Generic → Dilate.