---

costwidth Class Reference

For a wavelet packet tree node, consisting of n integer values, calculate the minimal number of bits needed to represent the values. More...

#include <costwidth.h>

Inheritance diagram for costwidth::

List of all members.

Public Methods
	costwidth (packnode< int > *root)
Protected Methods
int	costCalc (packnode< int > *root)
	Cost function to be defined by the subclass. More...

---

Detailed Description

For a wavelet packet tree node, consisting of n integer values, calculate the minimal number of bits needed to represent the values.

This cost function is used for lossless wavelet packet compression.

Definition at line 48 of file costwidth.h.

---

Constructor & Destructor Documentation

costwidth::costwidth ( packnode< int > * root ) [inline]

Definition at line 53 of file costwidth.h. { traverse( root ); }

---

Member Function Documentation

int costwidth::costCalc ( packnode< int > * root ) [protected, virtual]

Cost function to be defined by the subclass. Reimplemented from costbase_int. Definition at line 39 of file costwidth.cpp. { assert( root != 0 ); size_t N = root->length(); const int *a = root->getData(); int width = support::vecWidth( a, N ); return width; } // costCalc

---

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

• costwidth.h
• costwidth.cpp

---