firevision::FilterThreshold Class Reference

Threshold filter. More...

#include <>>

Inheritance diagram for firevision::FilterThreshold:

List of all members.

Public Member Functions
	FilterThreshold (unsigned char min=128, unsigned char min_replace=0, unsigned char max=127, unsigned char max_replace=255)
	Constructor.
void	set_thresholds (unsigned char min, unsigned char min_replace, unsigned char max, unsigned char max_replace)
	Set new thresholds.
virtual void	apply ()
	Apply the filter.
Public Member Functions inherited from firevision::Filter
	Filter (const char *name, unsigned int max_num_buffers=1)
	Constructor.
virtual	~Filter ()
	Destructor.
virtual void	set_src_buffer (unsigned char *buf, ROI *roi, orientation_t ori=ORI_HORIZONTAL, unsigned int buffer_num=0)
	Set source buffer with orientation.
virtual void	set_src_buffer (unsigned char *buf, ROI *roi, unsigned int buffer_num)
	Set source buffer.
virtual void	set_dst_buffer (unsigned char *buf, ROI *roi)
	Set the destination buffer.
virtual void	set_orientation (orientation_t ori, unsigned int buffer_num)
	Set the orientation to apply the filter in.
virtual const char *	name ()
	Get filter name.
void	shrink_region (ROI *r, unsigned int n)
	This shrinks the regions as needed for a N x N matrix.

Additional Inherited Members
Protected Attributes inherited from firevision::Filter
unsigned int	_max_num_buffers
	Maximum number of buffers.
char *	_name
	Filter name.
unsigned char **	src
	Source buffers, dynamically allocated by Filter ctor.
unsigned char *	dst
	Destination buffer.
ROI **	src_roi
	Source ROIs, dynamically allocated by Filter ctor.
ROI *	dst_roi
	Destination ROI.
orientation_t *	ori
	Orientations, one for each source image.

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Detailed Description

Threshold filter.

Implementation for threshold filter, this filter will luminance values below a given threshold to the given min_replace value, values above a given max threshold will be set to the max_replace value

Definition at line 37 of file threshold.h.

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Constructor & Destructor Documentation

firevision::FilterThreshold::FilterThreshold	(	unsigned char	min = 128,
		unsigned char	min_replace = 0,
		unsigned char	max = 127,
		unsigned char	max_replace = 255
	)

Constructor.

Parameters:

min	minimum value
min_replace	values below min are replaced with this value
max	maximum value
max_replace	values above max are replaced with this value

Definition at line 59 of file threshold.cpp.

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Member Function Documentation

void firevision::FilterThreshold::apply ( )

virtual

Apply the filter.

Apply the filter to the given source and destination buffers with given width and height and orientation (ori may be ignored for some filters).

Implements firevision::Filter.

Definition at line 94 of file threshold.cpp.

References firevision::Filter::dst, firevision::Filter::dst_roi, firevision::ROI::height, firevision::ROI::line_step, firevision::ROI::pixel_step, firevision::Filter::src, firevision::Filter::src_roi, firevision::ROI::start, firevision::ROI::width, fawkes::point_t::x, and fawkes::point_t::y.

void firevision::FilterThreshold::set_thresholds	(	unsigned char	min,
		unsigned char	min_replace,
		unsigned char	max,
		unsigned char	max_replace
	)

Set new thresholds.

Parameters:

min	minimum value
min_replace	values below min are replaced with this value
max	maximum value
max_replace	values above max are replaced with this value

Definition at line 83 of file threshold.cpp.

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The documentation for this class was generated from the following files:

• src/libs/fvfilters/threshold.h
• src/libs/fvfilters/threshold.cpp