JeVoisBase  1.5
JeVois Smart Embedded Machine Vision Toolkit Base Modules
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EdgeDetectionX4 Class Reference

Simple module to detect edges, running 4 filters in parallel with 4 different settings. More...

Inheritance diagram for EdgeDetectionX4:
Collaboration diagram for EdgeDetectionX4:

Public Member Functions

virtual ~EdgeDetectionX4 ()
 Virtual destructor for safe inheritance. More...
 
virtual void process (jevois::InputFrame &&inframe, jevois::OutputFrame &&outframe) override
 Processing function. More...
 
- Public Member Functions inherited from jevois::Module
 Module (std::string const &instance)
 
virtual ~Module ()
 
virtual void process (InputFrame &&inframe)
 
virtual void sendSerial (std::string const &str)
 
virtual void parseSerial (std::string const &str, std::shared_ptr< UserInterface > s)
 
virtual void supportedCommands (std::ostream &os)
 
 JEVOIS_DEFINE_ENUM_CLASS (SerStyle,(Terse)(Normal)(Detail)(Fine)) JEVOIS_DECLARE_PARAMETER(serstyle
 
 JEVOIS_DECLARE_PARAMETER (serprec, unsigned int, "Number of decimal points in standardized serial messages as " "defined in http://jevois.org/doc/UserSerialStyle.html", 0U, ParamCateg)
 
- Public Member Functions inherited from jevois::Component
 Component (std::string const &instance)
 
virtual ~Component ()
 
std::shared_ptr< ComponentgetSubComponent (std::string const &instance) const
 
std::shared_ptr< Comp > addSubComponent (std::string const &instance, Args &&...args)
 
void removeSubComponent (std::shared_ptr< Comp > &component)
 
void removeSubComponent (std::string const &instance, bool warnIfNotFound=true)
 
std::shared_ptr< Comp > getSubComponent (std::string const &instance) const
 
bool isTopLevel () const
 
bool initialized () const
 
std::string const & className () const
 
std::string const & instanceName () const
 
std::vector< std::string > setParamVal (std::string const &paramdescriptor, T const &val)
 
void setParamValUnique (std::string const &paramdescriptor, T const &val)
 
std::vector< std::pair< std::string, T > > getParamVal (std::string const &paramdescriptor) const
 
getParamValUnique (std::string const &paramdescriptor) const
 
std::vector< std::string > setParamString (std::string const &paramdescriptor, std::string const &val)
 
void setParamStringUnique (std::string const &paramdescriptor, std::string const &val)
 
std::vector< std::pair< std::string, std::string > > getParamString (std::string const &paramdescriptor) const
 
std::string getParamStringUnique (std::string const &paramdescriptor) const
 
void freezeParam (std::string const &paramdescriptor)
 
void unFreezeParam (std::string const &paramdescriptor)
 
void freezeAllParams ()
 
void unFreezeAllParams ()
 
std::string descriptor () const
 
void setParamsFromFile (std::string const &filename)
 
std::istream & setParamsFromStream (std::istream &is, std::string const &absfile)
 
void setPath (std::string const &path)
 
std::string absolutePath (std::string const &path="")
 
std::shared_ptr< Comp > addSubComponent (std::string const &instance, Args &&...args)
 
void removeSubComponent (std::shared_ptr< Comp > &component)
 
void removeSubComponent (std::string const &instance, bool warnIfNotFound=true)
 
std::shared_ptr< Comp > getSubComponent (std::string const &instance) const
 
bool isTopLevel () const
 
bool initialized () const
 
std::string const & className () const
 
std::string const & instanceName () const
 
std::vector< std::string > setParamVal (std::string const &paramdescriptor, T const &val)
 
void setParamValUnique (std::string const &paramdescriptor, T const &val)
 
std::vector< std::pair< std::string, T > > getParamVal (std::string const &paramdescriptor) const
 
getParamValUnique (std::string const &paramdescriptor) const
 
std::vector< std::string > setParamString (std::string const &paramdescriptor, std::string const &val)
 
void setParamStringUnique (std::string const &paramdescriptor, std::string const &val)
 
std::vector< std::pair< std::string, std::string > > getParamString (std::string const &paramdescriptor) const
 
std::string getParamStringUnique (std::string const &paramdescriptor) const
 
void freezeParam (std::string const &paramdescriptor)
 
void unFreezeParam (std::string const &paramdescriptor)
 
void freezeAllParams ()
 
void unFreezeAllParams ()
 
std::string descriptor () const
 
void setParamsFromFile (std::string const &filename)
 
std::istream & setParamsFromStream (std::istream &is, std::string const &absfile)
 
void setPath (std::string const &path)
 
std::string absolutePath (std::string const &path="")
 
- Public Member Functions inherited from jevois::ParameterRegistry
virtual ~ParameterRegistry ()
 

Related Functions

(Note that these are not member functions.)

 JEVOIS_DECLARE_PARAMETER (thresh1, double, "First threshold for hysteresis", 20.0, ParamCateg)
 Parameter. More...
 
 JEVOIS_DECLARE_PARAMETER (thresh2, double, "Second threshold for hysteresis", 60.0, ParamCateg)
 Parameter. More...
 
 JEVOIS_DECLARE_PARAMETER (aperture, int, "Aperture size for the Sobel operator", 3, ParamCateg)
 Parameter. More...
 
 JEVOIS_DECLARE_PARAMETER (l2grad, bool, "Use more accurate L2 gradient norm if true, L1 if false", false, ParamCateg)
 Parameter. More...
 
 JEVOIS_DECLARE_PARAMETER (thresh1delta, double, "First threshold delta over threads", 50.0, ParamCateg)
 Parameter. More...
 
 JEVOIS_DECLARE_PARAMETER (thresh2delta, double, "Second threshold delta over threads", 50.0, ParamCateg)
 Parameter. More...
 

Additional Inherited Members

- Protected Member Functions inherited from jevois::Component
virtual void preInit ()
 
virtual void postInit ()
 
virtual void preUninit ()
 
virtual void postUninit ()
 
virtual void preInit ()
 
virtual void postInit ()
 
virtual void preUninit ()
 
virtual void postUninit ()
 
- Protected Member Functions inherited from jevois::ParameterRegistry
void addParameter (ParameterBase *const param)
 
void removeParameter (ParameterBase *const param)
 
void callbackInitCall ()
 

Detailed Description

Simple module to detect edges, running 4 filters in parallel with 4 different settings.

Compute 4 Canny edge detection filters with 4 different settings, in parallel.

This module is useful as a pre-processor, feeding edge maps at 4 different levels of details to further processing that may happen on a host computer. The 4 different levels of detail can be leveraged to first detect the gross outlines of objects, and then focus on finer textures within these objects.

This algorithm should easily run at 45 frames/s on the JeVois smart camera.

Author
Laurent Itti
Display Name:
Edge Detection X4
Videomapping:
GREY 320 960 45.0 YUYV 320 240 45.0 JeVois EdgeDetectionX4
Email:
itti@usc.edu
Address:
University of Southern California, HNB-07A, 3641 Watt Way, Los Angeles, CA 90089-2520, USA
Main URL:
http://jevois.org
Support URL:
http://jevois.org/doc
Other URL:
http://iLab.usc.edu
License:
GPL v3
Distribution:
Unrestricted
Restrictions:
None

Definition at line 67 of file EdgeDetectionX4.C.

Constructor & Destructor Documentation

◆ ~EdgeDetectionX4()

virtual EdgeDetectionX4::~EdgeDetectionX4 ( )
inlinevirtual

Virtual destructor for safe inheritance.

Definition at line 75 of file EdgeDetectionX4.C.

Member Function Documentation

◆ process()

virtual void EdgeDetectionX4::process ( jevois::InputFrame &&  inframe,
jevois::OutputFrame &&  outframe 
)
inlineoverridevirtual

Friends And Related Function Documentation

◆ JEVOIS_DECLARE_PARAMETER() [1/6]

JEVOIS_DECLARE_PARAMETER ( thresh1  ,
double  ,
"First threshold for hysteresis"  ,
20.  0,
ParamCateg   
)
related

Parameter.

◆ JEVOIS_DECLARE_PARAMETER() [2/6]

JEVOIS_DECLARE_PARAMETER ( thresh2  ,
double  ,
"Second threshold for hysteresis"  ,
60.  0,
ParamCateg   
)
related

Parameter.

◆ JEVOIS_DECLARE_PARAMETER() [3/6]

JEVOIS_DECLARE_PARAMETER ( aperture  ,
int  ,
"Aperture size for the Sobel operator"  ,
,
ParamCateg   
)
related

Parameter.

◆ JEVOIS_DECLARE_PARAMETER() [4/6]

JEVOIS_DECLARE_PARAMETER ( l2grad  ,
bool  ,
"Use more accurate L2 gradient norm if  true,
L1 if false"  ,
false  ,
ParamCateg   
)
related

Parameter.

◆ JEVOIS_DECLARE_PARAMETER() [5/6]

JEVOIS_DECLARE_PARAMETER ( thresh1delta  ,
double  ,
"First threshold delta over threads"  ,
50.  0,
ParamCateg   
)
related

Parameter.

◆ JEVOIS_DECLARE_PARAMETER() [6/6]

JEVOIS_DECLARE_PARAMETER ( thresh2delta  ,
double  ,
"Second threshold delta over threads"  ,
50.  0,
ParamCateg   
)
related

Parameter.


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