1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287
|
/*=========================================================================
Program: ITK-SNAP
Module: $RCSfile: GenericImageData.h,v $
Language: C++
Date: $Date: 2009/08/29 23:02:43 $
Version: $Revision: 1.11 $
Copyright (c) 2007 Paul A. Yushkevich
This file is part of ITK-SNAP
ITK-SNAP is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
-----
Copyright (c) 2003 Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
-----
Copyright (c) 2003 Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __SegmentationUpdateIterator_h_
#define __SegmentationUpdateIterator_h_
#include "SNAPCommon.h"
#include "ImageWrapperTraits.h"
#include "UndoDataManager.h"
/**
* \class SegmentationUpdate
* \brief This class handles updates to the segmentation image at a high level.
*/
class SegmentationUpdateIterator
{
public:
typedef itk::Index<3> IndexType;
typedef itk::ImageRegion<3> RegionType;
typedef LabelImageWrapper::ImageType LabelImageType;
typedef itk::ImageRegionIterator<LabelImageType> LabelIteratorType;
typedef UndoDataManager<LabelType>::Delta UndoDelta;
enum UpdateType {
FOREGROUND, BACKGROUND, SKIP
};
SegmentationUpdateIterator(LabelImageType *labelImage,
const RegionType ®ion,
LabelType active_label,
DrawOverFilter draw_over)
: m_Region(region),
m_ActiveLabel(active_label),
m_DrawOver(draw_over),
m_Iterator(labelImage, region),
m_ChangedVoxels(0)
{
// Create the delta
m_Delta = new UndoDelta();
m_Delta->SetRegion(region);
// Set the voxel delta to zero
m_VoxelDelta = 0;
}
~SegmentationUpdateIterator()
{
if(m_Delta)
delete m_Delta;
}
void operator ++()
{
// Encode the current voxel delta
m_Delta->Encode(m_VoxelDelta);
m_VoxelDelta = 0;
// Keep track of changed voxels
if(m_VoxelDelta != 0)
m_ChangedVoxels++;
// Update the internal iterator
++m_Iterator;
}
const IndexType GetIndex()
{
return m_Iterator.GetIndex();
}
/**
* Paint with a specified label - respecting the draw-over mask
*/
virtual void PaintLabel(LabelType new_label)
{
LabelType lOld = m_Iterator.Get();
if(m_DrawOver.CoverageMode == PAINT_OVER_ALL ||
(m_DrawOver.CoverageMode == PAINT_OVER_ONE && lOld == m_DrawOver.DrawOverLabel) ||
(m_DrawOver.CoverageMode == PAINT_OVER_VISIBLE && lOld != 0))
{
if(lOld != new_label)
{
m_VoxelDelta += new_label - lOld;
m_Iterator.Set(new_label);
m_ChangedVoxels++;
}
}
}
/**
* Default painting mode - applies active label using the current draw over mask
*/
void PaintAsForeground()
{
this->PaintLabel(m_ActiveLabel);
}
/**
* Similar but clear label is not affected (used in cutplane mode)
*/
void PaintAsForegroundPreserveClear()
{
LabelType lOld = m_Iterator.Get();
if(lOld == 0)
return;
if(m_DrawOver.CoverageMode == PAINT_OVER_ALL ||
(m_DrawOver.CoverageMode == PAINT_OVER_ONE && lOld == m_DrawOver.DrawOverLabel) ||
(m_DrawOver.CoverageMode == PAINT_OVER_VISIBLE && lOld != 0))
{
if(lOld != m_ActiveLabel)
{
m_VoxelDelta += m_ActiveLabel - lOld;
m_Iterator.Set(m_ActiveLabel);
m_ChangedVoxels++;
}
}
}
/**
* Reverse painting mode - applies clear label over active label (paintbrush RMB click)
*/
void PaintAsBackground()
{
LabelType lOld = m_Iterator.Get();
if(m_ActiveLabel != 0 && lOld == m_ActiveLabel)
{
m_VoxelDelta += 0 - lOld;
m_Iterator.Set(0);
m_ChangedVoxels++;
}
}
/**
* More general method, replaces label with new_label if current label matches target_label,
* does not take into account Active/DrawOver state
*/
void ReplaceLabel(LabelType target_label, LabelType new_label)
{
LabelType lOld = m_Iterator.Get();
if(lOld == target_label)
{
m_VoxelDelta += new_label - lOld;
m_Iterator.Set(new_label);
m_ChangedVoxels++;
}
}
/**
* A more funky paint method, applies the following test, where X is the
* label at the voxel
*
* if(X != A and X \in DrawOver)
* X = B
*/
void PaintLabelWithExtraProtection(LabelType protect_label, LabelType new_label)
{
LabelType lOld = m_Iterator.Get();
// Test for protection or empty operation
if(lOld == protect_label || lOld == new_label)
return;
// Apply the draw over test
if(m_DrawOver.CoverageMode == PAINT_OVER_ALL ||
(m_DrawOver.CoverageMode == PAINT_OVER_ONE && lOld == m_DrawOver.DrawOverLabel) ||
(m_DrawOver.CoverageMode == PAINT_OVER_VISIBLE && lOld != 0))
{
m_VoxelDelta += new_label - lOld;
m_Iterator.Set(new_label);
m_ChangedVoxels++;
}
}
bool IsAtEnd()
{
return m_Iterator.IsAtEnd();
}
/**
* Call this method at the end of the iteration to finish encoding. This will also set the
* modified flag of the label image if there were any actual updates.
*/
void Finalize()
{
m_Delta->FinishEncoding();
if(m_ChangedVoxels > 0)
m_Iterator.GetImage()->Modified();
}
// Keep delta from being deleted
UndoDelta *RelinquishDelta()
{
UndoDelta *delta = m_Delta;
m_Delta = NULL;
return delta;
}
// Get the number of changed voxels
unsigned long GetNumberOfChangedVoxels() const
{
return m_ChangedVoxels;
}
// Get the pointer to the detla
UndoDelta *GetDelta() const
{
return m_Delta;
}
protected:
// Name of the segmentation update (for undo tracking)
std::string m_Title;
// Region over which update is performed
RegionType m_Region;
// Active label for the registration update
LabelType m_ActiveLabel;
// Coverage mode
DrawOverFilter m_DrawOver;
// RLE encoding of the segmentation update - for storing undo/redo points
UndoDelta *m_Delta;
// Iterator used internally
LabelIteratorType m_Iterator;
// Delta at the current location
LabelType m_VoxelDelta;
// Number of voxels actually modified
unsigned long m_ChangedVoxels;
};
#endif // SegmentationUpdateIterator
|