PixelTableCreateFilter

Create a pixel table from a filter shape

SYNOPSIS

#include "dip_pixel_table.h"

dip_Error dip_PixelTableCreateFilter ( table, param, shape, se, resources )

FUNCTION

This function allocates and creates a new pixel table data structure. The shape and dimensionality of the pixel table is specified by the param, shape and se parameters.

Only the rectangular, elliptic and diamond filter shapes are supported (DIP_FLT_SHAPE_RECTANGULAR, DIP_FLT_SHAPE_ELLIPTIC and DIP_FLT_SHAPE_DIAMOND). Other filter shapes can be implemented by setting shape to DIP_FLT_SHAPE_STRUCTURING_ELEMENT, and passing a binary image in se. The "on" pixels define the shape of the filter window. Other values of shape are illegal.

If shape is not equal to DIP_FLT_SHAPE_STRUCTURING_ELEMENT, se can be set to zero. When shape is set to DIP_FLT_SHAPE_STRUCTURING_ELEMENT, param is ignored, and can be set to zero.

ARGUMENTS

Data type	Name	Description
`dip_PixelTable *`	`table`	Pointer to a pixel table
`dip_FloatArray`	`param`	Filter size
`dip_FilterShape`	`shape`	Filter shape
`dip_Image`	`se`	Structuring element
`dip_Resources`	`resources`	Resources tracking structure. See `ResourcesNew`

The enumerator dip_FilterShape contains the following constants:

Name	Description
`DIP_FLT_SHAPE_DEFAULT`	Default filter window, same as `DIP_FLT_SHAPE_RECTANGULAR`
`DIP_FLT_SHAPE_RECTANGULAR`	Rectangular filter window, can be even in size
`DIP_FLT_SHAPE_ELLIPTIC`	Elliptic filter window, always odd in size
`DIP_FLT_SHAPE_DIAMOND`	Diamond-shaped filter window, always odd in size
`DIP_FLT_SHAPE_PARABOLIC`	Parabolic filter window (morphology only)
`DIP_FLT_SHAPE_DISCRETE_LINE`	Rotated line structuring element (morphology only)
`DIP_FLT_SHAPE_INTERPOLATED_LINE`	Rotated line structuring element, through interpolation (morphology only)
`DIP_FLT_SHAPE_PERIODIC_LINE`	(not implemented)
`DIP_FLT_SHAPE_STRUCTURING_ELEMENT`	Use `se` as filter window, can be any size

PixelTableCreateFilter

SYNOPSIS

FUNCTION

ARGUMENTS

SEE ALSO