plug_in_gauss_iir (1995-1996)

NAME

plug_in_gauss_iir - Applies a gaussian blur to the specified drawable.

SYNOPSIS

plug_in_gauss_iir (run_mode,image,drawable,radius,horizontal,vertical)

DESCRIPTION

Applies a gaussian blur to the drawable, with specified radius of affect. The standard deviation of the normal distribution used to modify pixel values is calculated based on the supplied radius. Horizontal and vertical blurring can be independently invoked by specifying only one to run. The IIR gaussian blurring works best for large radius values and for images which are not computer-generated. Values for radius less than 1.0 are invalid as they will generate spurious results.

INPUT ARGUMENTS

TYPE	NAME	DESCRIPTION
INT32	run_mode	Interactive, non-interactive
IMAGE	image	Input image (unused)
DRAWABLE	drawable	Input drawable
FLOAT	radius	Radius of gaussian blur (in pixels > 1.0)
INT32	horizontal	Blur in horizontal direction
INT32	vertical	Blur in vertical direction

SOME SYNTAX ALTERNATIVES

$drawable->gauss_iir (radius,horizontal,vertical)
$image->gauss_iir (drawable,radius,horizontal,vertical)
plug_in_gauss_iir (drawable,radius,horizontal,vertical)
gauss_iir Layer (drawable,radius,horizontal,vertical)
gauss_iir Image (drawable,radius,horizontal,vertical)
gauss_iir Plugin (drawable,radius,horizontal,vertical)

AUTHOR

Spencer Kimball & Peter Mattis
(c)1995-1996 Spencer Kimball & Peter Mattis