4.7. Simétrica del vecino más cercano

4.7.1. Generalidades

This filter blurs the image preserving edges. It is very effective in noise reduction maintaining sharp edges.

It works comparing each pixel to its neighboring pixels and to 1 or 2 pairs of symmetric pixels around the center.

4 symmetric pairs

4.7.2. Activar el filtro

You can find this filter through FiltersEnhanceSymmetric Nearest Neighbor….

4.7.3. Opciones

Figura 17.37. Symmetric Nearest neighbor filter options

Symmetric Nearest neighbor filter options

Presets, Preview, Split view

These options are common to GEGL-based filters. Please refer to Sección 2, “Características comunes”.

Radio

Radius, in pixels, of square pixel region. Width and height of this region are radius*2+1:

Pares

You can select 1 or 2 pairs : higher number preserves more acute features.

Recortado

The result of this filter can be larger than the original image. With the default Adjust option, the layer will be automatically resized as necessary when the filter is applied. With the Clip option the result will be clipped to the layer boundary.

4.7.4. Ejemplo

Left: original..............Right: filter applied