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empty_Filter Class Reference
[Image Processing FiltersSingle Frame]

#include <empty_Filter.h>

Inheritance diagram for empty_Filter:

phFilter phMutex phObject List of all members.

Detailed Description

Empty Simple Filter Class Example.

The empty_Filter does nothing and is meant to be a minimalistic template for creating a new filter class.

One should minimally fill in the details of the empty_Filter::cloneFilter() method, empty_Filter::set() method, the constructor and the destructor when creating a custom filter.

The empty_Filter::set() method should take a list of parameters that are needed to set up the filter algorithm with custom settings if necessary. This method isn't always required where the algorithm if a very simple non-customizable algorithm. However, for such filters that perform convolutions (like meanNxN_Filter) there may be a kernel size parameter that can be set through the empty_Filter::set() method. This method should lock the filter object before applying the settings to prevent race conditions when a pipeline thread is currently using the filter.

The empty_Filter::cloneFilter() method should allocate and return a new instance of the filter class. Use new and call the appropriate parameter setting methods, such as empty_Filter::set(), with the current filter's processing parameter values.

Make sure that empty_Filter::cloneFilter() locks the object while setting the processing parameters (m_value,etc.) and unlocks the filter object before returning.

Make sure that empty_Filter::set() locks the object before setting the processing parameter member variables (m_value,etc.).

Replace the name empty_Filter with <yourfiltername>_Filter in both the header and source files. Then change _EMPTY_FILTER_H to <YOURFILTERNAME>_FILTER_H.

Every filter should have the following documented:

Supported filter:

Unsupported formats:

Empty Filter todo item

Definition at line 110 of file empty_Filter.h.

Public Member Functions

 empty_Filter (unsigned int value=0)
 ~empty_Filter ()
int set (unsigned int value)
phFiltercloneFilter ()

Protected Member Functions

int filter ()

Private Attributes

unsigned int m_value

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

Copyright (C) 2002 - 2007 Philip D.S. Thoren ( )
University Of Massachusetts at Lowell
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Generated on Sat Jun 16 02:44:34 2007 for phission by  doxygen 1.4.4