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<h3 class="title"><a id="plug-in-erode"></a>7.4. Erode</h3>
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<p>
This filter is found in
<span class="guimenuitem">Image>Filters/Generic/E<span class="accel">r</span>ode</span>
</p>
<p>
This filter widens and enhances bright areas of the active layer or selection.
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<p>
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 darker
background will be changed to a big "pixel", composed of 9 pixels, and that will
create some noise in the image. A larger bright area will dilate by one pixel in
all directions.
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On more complex images, bright areas are widenned and enhanced the same, and
somewhat pixellated.
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This filter has no option.
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<h4 class="title"><a id="id3363983"></a>Example</h4>
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<span class="term">Erode noise</span>
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