high-pass filter
See Also: band-pass filter, edge enhancement, low-pass filter
[digital image processing] In digital image processing, a spatial filter that blocks low-frequency (long-wave) radiation, resulting in a sharpened image.
high-pass filter
In digital image processing, a spatial filter that blocks low-frequency (long-wave) radiation, resulting in a sharpened image. Referenced by: Band-pass filter.
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Both noise contributions can be combated by blocking the spectral parts close to DC with a high-pass filter; this is of particular use when receiving BOC modulated signals. The main parts of their spectral energy are moved away from the band center.
There are several different coefficients that can be used in a high-pass filter, but they all have the objective of sharpening edges. ArcGIS 's default high-pass filter uses these particular coefficients.
 See also: Image, Mapping, Feature, Object, Map
  
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