OFFIS DCMTK
Version 3.6.0
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objects of this class represent individual RGB pixels. More...
Public Member Functions | |
DcmQuantPixel () | |
default constructor, creates black pixel | |
DcmQuantPixel (const DcmQuantPixel &arg) | |
copy assignment constructor | |
OFBool | operator== (const DcmQuantPixel &src) const |
comparison operator for equality | |
double | luminance () const |
this method computes the luminance of the current pixel according to the NTSC formula. | |
unsigned long | hash () const |
this method computes an unsigned long hash value for the current pixel. | |
DcmQuantComponent | getRed () const |
returns the red component | |
DcmQuantComponent | getGreen () const |
returns the green component | |
DcmQuantComponent | getBlue () const |
returns the blue component | |
void | assign (DcmQuantComponent r, DcmQuantComponent g, DcmQuantComponent b) |
assigns new R, G and B values to this pixel | |
void | scale (DcmQuantComponent r, DcmQuantComponent g, DcmQuantComponent b, const DcmQuantScaleTable &table) |
assigns new R, G and B values to this pixel using the given scale table in which all three values are looked up. | |
Private Attributes | |
DcmQuantComponent | red |
red color component of this pixel | |
DcmQuantComponent | green |
green color component of this pixel | |
DcmQuantComponent | blue |
blue color component of this pixel | |
objects of this class represent individual RGB pixels.
This class is used by the color quantization classes. For efficiency considerations, all methods are declared inline.
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inline |
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inline |
returns the blue component
Definition at line 115 of file diqtpix.h.
References blue.
Referenced by DcmQuantFloydSteinberg::adjust(), DcmQuantColorTable::computeIndex(), DcmQuantColorTable::getBlue(), and DcmQuantFloydSteinberg::propagate().
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inline |
returns the green component
Definition at line 107 of file diqtpix.h.
References green.
Referenced by DcmQuantFloydSteinberg::adjust(), DcmQuantColorTable::computeIndex(), DcmQuantColorTable::getGreen(), and DcmQuantFloydSteinberg::propagate().
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inline |
returns the red component
Definition at line 99 of file diqtpix.h.
References red.
Referenced by DcmQuantFloydSteinberg::adjust(), DcmQuantColorTable::computeIndex(), DcmQuantColorTable::getRed(), and DcmQuantFloydSteinberg::propagate().
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inline |
this method computes an unsigned long hash value for the current pixel.
The hash algorithm is taken from Jef Poskanzer's ppm utility library. The return value is guaranteed to be < DcmQuantHashSize.
Definition at line 90 of file diqtpix.h.
References blue, green, and red.
Referenced by DcmQuantColorHashTable::add(), and DcmQuantColorHashTable::lookup().
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inline |
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inline |
assigns new R, G and B values to this pixel using the given scale table in which all three values are looked up.
r | new R |
g | new G |
b | new B |
table | scale table (LUT) in which R, G and B are looked up. |
Definition at line 143 of file diqtpix.h.
References blue, green, and red.
Referenced by DcmQuantColorMapping< T1, T2 >::create().