void ImageScaleTransform::process()
{
foreach (const ElementBase *source, mSourceElementsReadySet)
for (int i = 0; i < source->getFramesNo(); ++i)
{
const FrameBase *frame = source->getFrame(i);
if (frame->getMaxDimension() == ColorImageFrame::Dimensions)
{
mImageFrame.setSourceName(frame->getSourceName());
mSrcFrame.resizeAndCopyFrame(*frame);
ColorImageFrame::ImageType::Pointer srcImg = mSrcFrame;
typedef ScaleTransform<double, 2> TransformType;
TransformType::Pointer scaleTransform = TransformType::New();
FixedArray<float, 2> scale;
scale[0] = property("widthScale").toDouble();
scale[1] = property("heightScale").toDouble();
scaleTransform->SetScale(scale);
Point<float, 2> center;
center[0] = srcImg->GetLargestPossibleRegion().GetSize()[0]/2;
center[1] = srcImg->GetLargestPossibleRegion().GetSize()[1]/2;
scaleTransform->SetCenter(center);
typedef ResampleImageFilter<ColorImageFrame::ImageType, ColorImageFrame::ImageType> ResampleImageFilterType;
ResampleImageFilterType::Pointer resampleFilter = ResampleImageFilterType::New();
resampleFilter->SetTransform(scaleTransform);
resampleFilter->SetInput(srcImg);
resampleFilter->SetSize(srcImg->GetLargestPossibleRegion().GetSize());
resampleFilter->Update();
mImageFrame = resampleFilter->GetOutput();
emit framesReady();
break;
}
}
}
