maxarea

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Name

maxarea - max operator over a local window

Syntax

 #include <xite/minmax.h>

 BiffStatus maxarea( IBAND in_band,
    IBAND out_band, int dx, int dy );

Description

Compute maximum over a local region around (x,y) of size dx * dy in in_band. This maximum replaces the center pixel in out_band.

Restrictions

in_band and out_band must have pixel type unsigned byte.

Return value

 0 => ok
 1 => Bad input pixel type
 2 => Bad output pixel type
 3 => Bad dx value
 4 => Bad dy value

Author

Otto Milvang and Tor Lønnestad, BLAB, Ifi, UiO

Examples

maxarea(b1, b2, 3, 5);

Id

$Id: maxarea.c,v 1.28 1997/01/30 18:26:57 svein Exp $