Detects and emphasizes medium frequency information. The band width is determined by setting cut-off limits for low frequency
and high frequency information; information outside this band is then subtracted from the image by performing both a Low Pass
and a High Pass filter, and removing the results. Proportional amounts of the original image can optionally be added back
to the medium frequency information.
Requires an Input (Any).
Produces an Output (Any).
Filter
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Limits the range of high frequency information included in the band. Set any pixel value using the slider. The larger the
Radius, the smaller the range of high frequency information that is included in the band.
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Limits the range of low frequency information included in the band. Set any pixel value using the slider. The larger the Radius,
the greater the range of low frequency information that is included in the band. The greater the difference between the Inner
Radius and the Outer Radius, the wider the band.
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Sets the proportion of the original image that is added back in. A Bias value of 1 means that the whole of the original image
is added back in. Set a value between 0 and 1 using the slider.
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Sets the emphasis given to the high frequency information. The pixel values of the high frequency information are multiplied
by the Effect Scale value; thus an Effect Scale of 3 will cause the high frequency information to appear three times as bright.
Set any value using the slider.
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Accuracy lets you change the range of samples used to approximate a Gaussian blur of a given radius. For high accuracy (e.g.,
90%) samples are taken over about twice the radius of the blur, while for the lowest accuracy (60%), samples are taken over
the radius of the blur.
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