mode

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Name

mode - noise removal and edge sharpening

Syntax

 mode <inimage> <outimage> [<dx> [<dy>]]

Description

mode noise filtering with window dx x dy using histogram updating technique. The pixel value occurring most frequently within the window becomes the new pixel value in the window center.

dx is the horisontal window size, default value 3. dy is the vertical window size, default value dx.

Restrictions

Input image bands must have pixel type unsigned byte.

See also

median(1), pseudomedian3x3(1), sigma(1), snn(1), knn(1), kncn(1), convolve(1)

Author

Tor Lønnestad, BLAB, Ifi, UiO

Examples

 mode mona.img monamode.img
 mode mona.img monamode.img 5
 mode mona.img monamode.img 5 7

Id

$Id: mode.c,v 1.23 1997/01/10 16:07:52 svein Exp $