Edge emphasizing circuit

Details Edge emphasizing circuit Edge emphasizing circuit

2003-05-23

2008-10-07

Allison, Andrae S. (Department: 2624)

Image analysis

Image enhancement or restoration

Edge or contour enhancement

C382S260000, C348S252000

Reexamination Certificate

active

07433534

ABSTRACT:
An edge emphasizing circuit includes a weighing addition circuit, and the weighing addition circuit performs on the basis of a weighing coefficient applied from a coefficient calculating circuit a weighing addition with respect to raw image data and data obtained by performing a filtering process on the raw image data by a median filter. Then, an aperture signal producing circuit produces an aperture signal on the basis of a result of the weighing addition. The aperture signal is in an adder superimposed on Y data output from a signal processing circuit, whereby an edge component of the Y data is emphasized.

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