libpgf  6.12.24
PGF - Progressive Graphics File
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Subband.cpp File Reference
#include "Subband.h"
#include "Encoder.h"
#include "Decoder.h"

Go to the source code of this file.

Functions

*Perform subband
dequantization with given
quantization parameter *A
scalar 
quantization (with dead-zone) is used.A large quantization value *results in strong quantization and therefore in big quality loss.*@param quantParam A quantization parameter(larger or equal to 0)*/void CSubband
 

Variables

*Extracts a rectangular
subregion of this subband
*Write wavelet coefficients
into buffer *It might throw an
IOException *param encoder An
encoder instance *param tile
True if just a rectangular
region is 
extracted
 
*Decoding and dequantization
of this subband *It might
throw an IOException *param
decoder A decoder instance
*param quantParam
Dequantization value *param
tile True if just a
rectangular region is 
placed
 

Function Documentation

* Perform subband dequantization with given quantization parameter* A scalar quantization ( with dead-  zone)

Definition at line 146 of file Subband.cpp.

{
if (m_orientation == LL) {
} else if (m_orientation == HH) {
} else {
}
if (quantParam > 0) {
for (UINT32 i=0; i < m_size; i++) {
}
}
}

Variable Documentation

* Extracts a rectangular subregion of this subband* Write wavelet coefficients into buffer* It might throw an IOException* param encoder An encoder instance* param tile True if just a rectangular region is extracted

Definition at line 169 of file Subband.cpp.

* Decoding and dequantization of this subband* It might throw an IOException* param decoder A decoder instance* param quantParam Dequantization value* param tile True if just a rectangular region is placed

Definition at line 194 of file Subband.cpp.