void OOFImage3D::threshold(double T) {
vtkImageData *rgb = getRGB();
vtkImageData *alpha = getAlpha();
vtkImageData *gray;
vtkImageLuminance *luminance;
vtkImageThreshold *thold1, *thold2;
luminance = vtkImageLuminance::New();
luminance->SetInputConnection(rgb->GetProducerPort());
gray = luminance->GetOutput();
thold1 = vtkImageThreshold::New();
thold1->ThresholdByUpper(T*255);
thold1->SetOutValue(0);
thold1->SetInputConnection(gray->GetProducerPort());
thold2 = vtkImageThreshold::New();
thold2->ThresholdByLower(T*255);
thold2->SetOutValue(255);
thold2->SetInputConnection(thold1->GetOutputPort());
gray = thold2->GetOutput();
gray->Update();
combineChannels(gray,alpha);
imageChanged();
}
//Encodes the audio data into a WAV file
void coder::encode(AudioData * data, string filename){
ofstream audioFile(filename, ios::binary);
if(audioFile.is_open()){
audioFile.write(data->getRIFF(), 4);
int fileSize = data->getFileSize();
audioFile.write((char *)&fileSize, 4);
audioFile.write(data->getFileType(), 4);
audioFile.write(data->getFormat(), 4);
unsigned int infoSize = data->getFormatInfoSize();
audioFile.write((char *)&infoSize, 4);
audioFile.write(data->getFormatInfo(), infoSize);
audioFile.write(data->getDataChunk(), 4);
unsigned int dataSize = data->getDataSize();
audioFile.write((char *)&dataSize, 4);
short ** channelData = data->getChannelData();
short * combinedData = combineChannels(channelData, data->getChannels(), data->getNumberOfSamples());
audioFile.write((char *)combinedData, dataSize);
audioFile.close();
}
}
void OOFImage3D::gray() {
vtkImageData *rgb = getRGB();
vtkImageData *alpha = getAlpha();
vtkImageData *gray;
vtkImageLuminance *luminance;
luminance = vtkImageLuminance::New();
luminance->SetInputConnection(rgb->GetProducerPort());
gray = luminance->GetOutput();
gray->Update();
combineChannels(gray,alpha);
imageChanged();
}
void OOFImage3D::medianFilter(int radius) {
padImage(-1);
vtkImageData *rgb = getRGB();
vtkImageData *alpha = getAlpha();
vtkImageMedian3D *median;
median = vtkImageMedian3D::New();
median->SetKernelSize(radius*2, radius*2, radius*2);
median->SetInputConnection(rgb->GetProducerPort());
rgb = median->GetOutput();
rgb->Update();
combineChannels(rgb,alpha);
padImage(1);
imageChanged();
}
void OOFImage3D::dim(double factor) {
vtkImageData *rgb = getRGB();
vtkImageData *alpha = getAlpha();
vtkImageMathematics *dimmer;
dimmer = vtkImageMathematics::New();
dimmer->SetOperationToMultiplyByK();
dimmer->SetConstantK(factor);
dimmer->SetInputConnection(rgb->GetProducerPort());
rgb = dimmer->GetOutput();
rgb->SetScalarTypeToUnsignedChar();
rgb->Update();
combineChannels(rgb,alpha);
imageChanged();
}
void OOFImage3D::negate(double dummy) {
vtkImageData *rgb = getRGB();
vtkImageData *alpha = getAlpha();
vtkImageMathematics *negator, *corrector;
negator = vtkImageMathematics::New();
negator->SetOperationToMultiplyByK();
negator->SetConstantK(-1.0);
negator->SetInputConnection(rgb->GetProducerPort());
corrector = vtkImageMathematics::New();
corrector->SetOperationToAddConstant();
corrector->SetConstantC(255);
corrector->SetInputConnection(negator->GetOutputPort());
rgb = corrector->GetOutput();
rgb->SetScalarTypeToUnsignedChar();
rgb->Update();
combineChannels(rgb,alpha);
imageChanged();
}
void OOFImage3D::fade(double factor) {
vtkImageData *rgb = getRGB();
vtkImageData *alpha = getAlpha();
vtkImageMathematics *fade1, *fade2;
fade1 = vtkImageMathematics::New();
fade1->SetOperationToMultiplyByK();
fade1->SetConstantK(1.0-factor);
fade1->SetInputConnection(rgb->GetProducerPort());
fade2 = vtkImageMathematics::New();
fade2->SetOperationToAddConstant();
fade2->SetConstantC(255*factor);
fade2->SetInputConnection(fade1->GetOutputPort());
rgb = fade2->GetOutput();
rgb->SetScalarTypeToUnsignedChar();
rgb->Update();
combineChannels(rgb,alpha);
imageChanged();
}
