bmprgbsamplevalue(3)
NAME
BmpRGBSampleValue - a sample in a bmp rgb (i.e. 24-bit) file
SYNOPSIS
#include <BmpRGBSampleValue.h> Inherits BmpSampleValue. Public Member Functions BmpRGBSampleValue (BYTE r, BYTE g, BYTE b) BmpRGBSampleValue (RGBTriple t) UWORD32 calcDistance (const SampleValue *s) const SampleValue * getNearestTargetSampleValue (EmbValue t) const std::string getName (void) const BYTE getRed (void) const BYTE getGreen (void) const BYTE getBlue (void) const Private Types enum COLOR { RED, GREEN, BLUE } enum DIRECTION { UP, DOWN } Private Member Functions UWORD32 calcKey (const RGBTriple &rgb) const EmbValue calcEValue (const RGBTriple &rgb) const BYTE plus (BYTE a, BYTE b) const BYTE minus (BYTE a, BYTE b) const void addNTSVCandidates (std::vector< RGBTriple > &cands, const BYTE cube[3][2], COLOR fc, DIRECTION fd, COLOR i1, COLOR i2, EmbValue t) const Private Attributes RGBTriple Color
Member Enumeration Documentation
- enum BmpRGBSampleValue::COLOR [private]
- Enumerator:
- RED
- GREEN
- BLUE
- enum BmpRGBSampleValue::DIRECTION [private]
- Enumerator:
- UP
- DOWN
Constructor & Destructor Documentation
BmpRGBSampleValue::BmpRGBSampleValue (BYTE r, BYTE g, BYTE b) BmpRGBSampleValue::BmpRGBSampleValue (RGBTriple t)
Member Function Documentation
- UWORD32 BmpRGBSampleValue::calcDistance (const SampleValue * s) const
- [virtual]
calculate the distance between the sample value s and this sample value - Parameters:
s a sample value of the same type as this
- Returns:
the distance
- Reimplemented from BmpSampleValue.
- SampleValue * BmpRGBSampleValue::getNearestTargetSampleValue (EmbValue t)
- const [virtual]
get the nearest (with the least distance to this sample value) sample
value whose embedded value equals the specified target - Parameters:
t the target embedded value
- If two or more target sample values have equal distance each of them
should be returned with equal probability. - The returned SampleValue object should be deleted by the callser.
- Implements SampleValue.
- std::string BmpRGBSampleValue::getName (void) const [virtual]
- return a short name uniquely identifying this sample value
- Implements SampleValue.
- BYTE BmpRGBSampleValue::getRed (void) const [inline, virtual]
- get the red color component
- Implements BmpSampleValue.
- BYTE BmpRGBSampleValue::getGreen (void) const [inline, virtual]
- get the green color component
- Implements BmpSampleValue.
- BYTE BmpRGBSampleValue::getBlue (void) const [inline, virtual]
- get the blue color component
- Implements BmpSampleValue.
- UWORD32 BmpRGBSampleValue::calcKey (const RGBTriple & rgb) const [inline,
- private]
- EmbValue BmpRGBSampleValue::calcEValue (const RGBTriple & rgb) const
- [inline, private]
- BYTE BmpRGBSampleValue::plus (BYTE a, BYTE b) const [private]
- add the BYTEs a and b
- Returns:
min(255, a + b)
- BYTE BmpRGBSampleValue::minus (BYTE a, BYTE b) const [private]
- substract the BYTE b from the BYTE a
- Returns:
max(0, a - b)
- void BmpRGBSampleValue::addNTSVCandidates (std::vector< RGBTriple > &
- cands, const BYTE cube[3][2], COLOR fc, DIRECTION fd, COLOR i1, COLOR i2, EmbValue t) const [private] add candidates for the nearest target sample value
- Parameters:
cands the candidates vector
cube the color values describing the current search cube
fc the fixed color
fd the fixed side of the fixed color
Member Data Documentation
RGBTriple BmpRGBSampleValue::Color [private]
Author
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