.~.~ Lowpass filter (i.e., for blurring or smoothing)
DEFINITION
Classification: 382/264
Lowpass filter (i.e., for blurring or smoothing):
(under subclass 260) Subject matter wherein high-frequency components of the image are attenuated or eliminated.
(1) Note. Generally, lowpass filtering blurs edges as it removes small details from the image, reduces noise and bridges small gaps in lines or curves.
(2) Note. An example of a lowpass filter is the Gaussian filter.
SEE OR SEARCH CLASS
348, Television,
597, for the generation of soft edges in television signals.
