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Filters

Note: All the filters described here may also be applied to selected regions.

The Color equalizer

The color equalizer allows you to change the brightness and contrast and perform some sort of color shifts. The usage should be obvious.

Note: The manipulations will performed in the same order in which the sliders appear in the popup window.

The Sample colorizer

Sometimes you may wish that an image uses the same set of colors as another one. To this end load the second image to the clipboard and invoke the sample colorizer from the filters menu. Then a window will pop up from which you can choose the sample from which the colors should be taken. The sample colorizer will build a color tables of the image and the sample and then replace each pixel in the image with the sample color which matches best with respect to euclidean RGB distance.

Gaussian Blur

I added this filter, because the plugin based on pnmsmooth, which i used before could not handle images containing transparent regions.

Remove Isolated Pixels

This filter is mainly intended in order to remove background pixels which remained left, when a background was removed by the flood fill tool (doing this by hand would be annoying). It will not change border pixels.

Note, that removing isolated pixels may have the effect, that pixels are isolated, which where not isolated before.


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