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
|
/*****************************************************************************
* $CAMITK_LICENCE_BEGIN$
*
* CamiTK - Computer Assisted Medical Intervention ToolKit
* (c) 2001-2024 Univ. Grenoble Alpes, CNRS, Grenoble INP - UGA, TIMC, 38000 Grenoble, France
*
* Visit http://camitk.imag.fr for more information
*
* This file is part of CamiTK.
*
* CamiTK is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* CamiTK 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 Lesser General Public License version 3 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with CamiTK. If not, see <http://www.gnu.org/licenses/>.
*
* $CAMITK_LICENCE_END$
****************************************************************************/
#include "HardCodedPipelineAction.h"
// CamiTK
#include <Application.h>
#include <Property.h>
#include <Log.h>
// Qt
#include <QVector3D>
using namespace camitk;
// --------------- Constructor -------------------
HardCodedPipelineAction::HardCodedPipelineAction(ActionExtension* extension) : Action(extension) {
// Setting name, description and input component
setName(tr("Hard-Coded Action Pipeline"));
setDescription("Demonstrate how to call one or more actions from another action (that is, implement a hard-coded action pipeline without modifying anything of the called actions).");
setComponentClassName("ImageComponent");
// Setting classification family and tags
setFamily(tr("Tutorial"));
addTag(tr("Pipeline"));
// Setting the action's parameters
addParameter(new Property(tr("Resample Factor"), QVariant(0.5), tr("The resample factor to use when applying the Resample action"), tr("factor")));
}
// --------------- destructor -------------------
HardCodedPipelineAction::~HardCodedPipelineAction() {
// Do not do anything yet.
// Delete stuff if you create stuff
// (except if you use smart pointers of course !!)
}
// --------------- apply -------------------
Action::ApplyStatus HardCodedPipelineAction::apply() {
PipelineActionStatus pipelineStatus = PipelineActionStatus::OK;
//
// Hard-coded Pipeline starts here
// 1. apply Resample action, and check that everything is ok
// 2. apply Otsu threshold
// if everything is alright, remove the intermediate results and force the application refresh
// 1. apply the resample action (first action in the pipeline) on the last selected component
pipelineStatus = applyResample(getTargets().last());
// If the image has been saved, then it is not modified any more...
if (pipelineStatus == OK) {
// You can most of the time safely ignore the safeguard bits below and simply use:
// Component* resampled = resampleAction->getOutputComponent()
// But in some rare case, the second action of this pipeline is not going to use the correct
// input. For these cases, you need to use:
Component* resampled = getLastTopLevelOutputComponents("Resample");
// 2. apply the Otsu action (second action in the pipeline)
pipelineStatus = applyOtsu(resampled);
if (pipelineStatus == OK) {
// if all goes well, don't show the intermediate result
delete resampled;
}
}
switch (pipelineStatus) {
case OTSU_APPLY_ERROR:
CAMITK_ERROR("\"Otsu Threshold Filter\" apply error");
break;
case OTSU_NOT_FOUND:
CAMITK_ERROR("\"Otsu Threshold Filter\" action not found");
break;
case RESAMPLE_APPLY_ERROR:
CAMITK_ERROR("\"Resample Factor\" apply error.");
break;
case RESAMPLE_NOT_FOUND:
CAMITK_ERROR("\"Resample Factor\" action not found");
break;
case OK:
CAMITK_TRACE("Pipeline successful");
break;
}
Application::refresh();
return ((pipelineStatus == OK) ? SUCCESS : ERROR);
}
// --------------- getLastTopLevelOutputComponents -------------------
Component* HardCodedPipelineAction::getLastTopLevelOutputComponents(const QString& actionName) {
Component* lastOutputComponent = nullptr;
Action* currentAction = Application::getAction(actionName);
if (currentAction != nullptr) {
#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
// it Qt >= 5.6 crbegin() exist and we can use a lambda expression to find the first
// top level component, looking from the end to the beginning of the component list.
auto it = find_if(currentAction->getOutputComponents().crbegin(),
currentAction->getOutputComponents().crend(),
[](const Component * c) {
return c->isTopLevel();
});
// This is the equivalent of:
// ComponentList::reverse_iterator it = currentAction->getOutputComponents().rbegin();
// while (it != currentAction->getOutputComponents().rend() && !(*it)->isTopLevel()) {
// it++;
// }
lastOutputComponent = (*it);
#else
// In Qt < 5.6, too bad: crbegin(), crend(), rbegin() and rend() do not exist
unsigned int i = currentAction->getOutputComponents().size() - 1;
while (i > 0 && !currentAction->getOutputComponents().at(i)->isTopLevel()) {
i--;
}
if (i >= 0) {
lastOutputComponent = currentAction->getOutputComponents().at(i);
}
#endif
}
return lastOutputComponent;
}
// --------------- applyResample -------------------
HardCodedPipelineAction::PipelineActionStatus HardCodedPipelineAction::applyResample(Component* input) {
Action* resampleAction = Application::getAction("Resample");
if (resampleAction == nullptr) {
return RESAMPLE_NOT_FOUND;
}
else {
// set the input
resampleAction->setInputComponent(input);
// set the parameter
ImageComponent* inputImage = dynamic_cast<ImageComponent*>(input);
// Note: as Resample action takes ImageComponent as inputs, the dynamic_cast is
// guaranty to work perfectly well.
int* dims = inputImage->getImageData()->GetDimensions();
double factor = property("Resample Factor").toDouble();
resampleAction->setProperty("New Image X Dimension", int(dims[0]*factor));
resampleAction->setProperty("New Image Y Dimension", int(dims[1]*factor));
resampleAction->setProperty("New Image Z Dimension", std::max(1, int(dims[2]*factor)));
// apply the action
Action::ApplyStatus status = resampleAction->applyInPipeline();
// reset the flag (just in case)
input->setModified(false);
return (status == Action::SUCCESS) ? OK : RESAMPLE_APPLY_ERROR;
}
}
// --------------- applyOtsu -------------------
HardCodedPipelineAction::PipelineActionStatus HardCodedPipelineAction::applyOtsu(Component* input) {
Action* otsuThreshold = Application::getAction("Otsu Threshold Filter");
if (otsuThreshold == nullptr) {
return OTSU_NOT_FOUND;
}
else {
// set the input
otsuThreshold->setInputComponent(input);
// nothing special to do on the action parameters
// apply the action
Action::ApplyStatus status = otsuThreshold->applyInPipeline();
return (status == Action::SUCCESS) ? OK : OTSU_APPLY_ERROR;
}
}
|
