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ImageFusion
include
itkLabelToRGBFunctor.h
Go to the documentation of this file.
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/*=========================================================================
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*
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* Copyright Insight Software Consortium
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0.txt
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*=========================================================================*/
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#ifndef __itkLabelToRGBFunctor_h
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#define __itkLabelToRGBFunctor_h
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#include <vector>
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#include "
itkNumericTraits.h
"
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namespace
itk
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{
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namespace
Functor
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{
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template
<
class
TLabel,
class
TRGBPixel >
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class
LabelToRGBFunctor
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{
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public
:
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typedef
LabelToRGBFunctor
Self
;
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LabelToRGBFunctor
()
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{
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TRGBPixel rgbPixel;
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typedef
typename
TRGBPixel::ValueType ValueType;
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// the following colors are from "R", and named:
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// "red" "green3" "blue" "cyan"
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//"magenta" "darkorange1" "darkgreen" "blueviolet"
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//"brown4" "navy" "yellow4" "violetred1"
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//"salmon4" "turquoise4" "sienna3" "darkorchid1"
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//"springgreen4" "mediumvioletred" "orangered3" "lightseagreen"
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//"slateblue" "deeppink1" "aquamarine4" "royalblue1"
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//"tomato3" "mediumblue" "violetred4" "darkmagenta"
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//"violet" "red4"
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// They are a good selection of distinct colours for plotting and
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// overlays.
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AddColor
(255, 0, 0);
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AddColor
(0, 205, 0);
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AddColor
(0, 0, 255);
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AddColor
(0, 255, 255);
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AddColor
(255, 0, 255);
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AddColor
(255, 127, 0);
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AddColor
(0, 100, 0);
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AddColor
(138, 43, 226);
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AddColor
(139, 35, 35);
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AddColor
(0, 0, 128);
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AddColor
(139, 139, 0);
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AddColor
(255, 62, 150);
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AddColor
(139, 76, 57);
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AddColor
(0, 134, 139);
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AddColor
(205, 104, 57);
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AddColor
(191, 62, 255);
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AddColor
(0, 139, 69);
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AddColor
(199, 21, 133);
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AddColor
(205, 55, 0);
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AddColor
(32, 178, 170);
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AddColor
(106, 90, 205);
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AddColor
(255, 20, 147);
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AddColor
(69, 139, 116);
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AddColor
(72, 118, 255);
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AddColor
(205, 79, 57);
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AddColor
(0, 0, 205);
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AddColor
(139, 34, 82);
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AddColor
(139, 0, 139);
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AddColor
(238, 130, 238);
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AddColor
(139, 0, 0);
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// provide some default value for external use (outside
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// LabelToRGBImageFilter)
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// Inside LabelToRGBImageFilter, the values are always initialized
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NumericTraits<TRGBPixel>::SetLength
(
m_BackgroundColor
, 3);
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m_BackgroundColor
.Fill(
NumericTraits< ValueType >::Zero
);
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m_BackgroundValue
=
NumericTraits< TLabel >::Zero
;
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}
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inline
TRGBPixel
operator()
(
const
TLabel & p)
const
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{
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// value is background
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// return a gray pixel with the same intensity than the label pixel
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if
( p ==
m_BackgroundValue
)
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{
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return
m_BackgroundColor
;
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}
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// else, return a colored pixel from the color table
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return
m_Colors
[p %
m_Colors
.size()];
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}
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void
AddColor
(
unsigned
char
r,
unsigned
char
g,
unsigned
char
b)
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{
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TRGBPixel rgbPixel;
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NumericTraits<TRGBPixel>::SetLength
(rgbPixel, 3);
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typedef
typename
TRGBPixel::ValueType ValueType;
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ValueType m =
NumericTraits<ValueType>::max
();
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rgbPixel[0] =
static_cast<
ValueType
>
(
static_cast<
double
>
( r ) / 255 * m );
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rgbPixel[1] =
static_cast<
ValueType
>
(
static_cast<
double
>
( g ) / 255 * m );
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rgbPixel[2] =
static_cast<
ValueType
>
(
static_cast<
double
>
( b ) / 255 * m );
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m_Colors
.push_back(rgbPixel);
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}
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// Empty the color LUT
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void
ResetColors
()
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{
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m_Colors
.clear();
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}
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// Get number of colors in the LUT
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unsigned
int
GetNumberOfColors
()
const
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{
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return
m_Colors
.size();
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}
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bool
operator!=
(
const
Self
& l)
const
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{
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const
bool
areDifferent =
m_BackgroundColor
!= l.
m_BackgroundColor
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||
m_BackgroundValue
!= l.
m_BackgroundValue
;
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return
areDifferent;
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}
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bool
operator==
(
const
Self
& other)
const
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{
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return
!( *
this
!= other );
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}
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void
SetBackgroundValue
(TLabel v)
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{
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m_BackgroundValue
= v;
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}
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void
SetBackgroundColor
(TRGBPixel rgb)
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{
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m_BackgroundColor
= rgb;
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}
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~LabelToRGBFunctor
() {}
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std::vector< TRGBPixel >
m_Colors
;
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TRGBPixel
m_BackgroundColor
;
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TLabel
m_BackgroundValue
;
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};
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}
// end namespace functor
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}
// end namespace itk
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#endif
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