void main(){
typedef itk::Image<signed short, 2> imagetype;
typedef itk::ImageFileReader<imagetype> imagereadertype;
typedef itk::ImageToVTKImageFilter<imagetype> connerctortypr;
imagereadertype::Pointer reader = imagereadertype::New();
reader->SetFileName("e:/IM-0001-0001.dcm");
auto iotype = itk::GDCMImageIO::New();
reader->SetImageIO(iotype);
try{
reader->Update();
}
catch (itk::ExceptionObject e){
std::cerr << "exception in file reader " << std::endl;
std::cerr << e.GetDescription() << std::endl;
std::cerr << e.GetLocation() << std::endl;
}
connerctortypr::Pointer connector = connerctortypr::New();
connector->SetInput(reader->GetOutput());
connector->Update();
auto flip = vtkImageFlip::New();
flip->SetInputData(connector->GetOutput());
flip->SetFilteredAxis(1);
flip->Update();
auto actor = vtkImageActor::New();
//actor->GetMapper()->SetInputData(flip->GetOutput());
actor->SetInputData(flip->GetOutput());
actor->InterpolateOff();
actor->Update();
auto render = vtkRenderer::New();
render->AddActor(actor);
auto window = vtkRenderWindow::New();
window->SetSize(800, 600);
window->AddRenderer(render);
auto interactor = vtkRenderWindowInteractor::New();
interactor->SetRenderWindow(window);
interactor->Initialize();
interactor->Start();
}
status_t
GLRendererRoster::CreateRenderer(const entry_ref& ref)
{
BEntry entry(&ref, true);
node_ref nodeRef;
status_t status = entry.GetNodeRef(&nodeRef);
if (status < B_OK)
return status;
BPath path(&ref);
image_id image = load_add_on(path.Path());
if (image < B_OK)
return image;
BGLRenderer* (*instantiate_renderer)
(BGLView* view, ulong options, BGLDispatcher* dispatcher);
status = get_image_symbol(image, "instantiate_gl_renderer",
B_SYMBOL_TYPE_TEXT, (void**)&instantiate_renderer);
if (status == B_OK) {
BGLRenderer* renderer
= instantiate_renderer(fView, fOptions, new BGLDispatcher());
if (!renderer) {
unload_add_on(image);
return B_UNSUPPORTED;
}
if (AddRenderer(renderer, image, &ref, nodeRef.node) != B_OK) {
renderer->Release();
// this will delete the renderer
unload_add_on(image);
}
return B_OK;
}
unload_add_on(image);
return status;
}
void MediaStreamTrack::AddVideoRenderer(webrtc::VideoRendererInterface & renderer) {
auto inner_track = inner_video_track();
if (!inner_track) { Fatal("not video track"); }
inner_track->AddRenderer(&renderer);
}
int main(int, char *[])
{
const std::string file = "/home/mathieu/dev/cochleo/share/cochlee.wav";
const audiofile audio(file);
filterbank fb(audio.sample_frequency(),100,6000,1000);
const auto xaxis = audio.time();
const auto yaxis = fb.center_frequency();
auto cochleo = fb.compute(audio.channel(0));
normalization(cochleo);
// Create the color palette
auto palette = vtkSmartPointer<vtkLookupTable>::New();
palette->SetTableRange(0.0,1.0);
palette->SetHueRange(0.67,0.);
palette->SetSaturationRange(0.7,0.3);
palette->Build();
// Create a c-style rgb image
const std::size_t width = xaxis.size();
const std::size_t height = yaxis.size();
std::vector<unsigned char> cImage(3*width*height);
for(std::size_t i=0; i<width; ++i)
for(std::size_t j=0; j<height; ++j)
{
unsigned char* color = palette->MapValue(cochleo[i][j]);
cImage[3*(i+width*j)] = color[0];
cImage[3*(i+width*j)+1] = color[1];
cImage[3*(i+width*j)+2] = color[2];
}
// Convert the c-style image to a vtkImageData
auto imageImport = vtkSmartPointer<vtkImageImport>::New();
imageImport->SetDataSpacing(0.07, 1, 1);
imageImport->SetDataOrigin(0, 0, 0);
imageImport->SetWholeExtent(0, width-1, 0, height-1, 0, 0);
imageImport->SetDataExtentToWholeExtent();
imageImport->SetDataScalarTypeToUnsignedChar();
imageImport->SetNumberOfScalarComponents(3);
imageImport->SetImportVoidPointer(cImage.data());
imageImport->Update();
// Create an actor
auto actor = vtkSmartPointer<vtkImageActor>::New();
actor->SetInput(imageImport->GetOutput());
// Create a scalar bar
auto scalarBar = vtkSmartPointer<vtkScalarBarActor>::New();
scalarBar->SetLookupTable(palette);
scalarBar->SetTitle("gain");
scalarBar->SetNumberOfLabels(5);
// Configure text of the scalar bar
auto textBar = vtkSmartPointer<vtkTextProperty>::New();
textBar->SetFontSize(10);
scalarBar->SetTitleTextProperty(textBar);
scalarBar->SetLabelTextProperty(textBar);
// Setup renderer
auto renderer = vtkSmartPointer<vtkRenderer>::New();
renderer->AddActor(actor);
renderer->AddActor(scalarBar);
renderer->ResetCamera();
// Setup render window
auto renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
// Setup render window interactor
auto renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
auto style = vtkSmartPointer<vtkInteractorStyleImage>::New();
renderWindowInteractor->SetInteractorStyle(style);
// Render and start interaction
renderWindowInteractor->SetRenderWindow(renderWindow);
renderWindowInteractor->Initialize();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
