bool ImageFlip::process()
{
CvMatData in = m_inputPin->get();
CvMatData out = CvMatData::create(in.properties());
// open for reading
const cv::Mat& src = in;
// open image for writing
cv::Mat& target = out;
// do a flip of the image
cv::flip( src, target, m_method.getSelectedValue() );
// publish the new image
m_outputPin->put( target );
return true;
}
/**
Calculates the first, second, third or mixed image derivatives using an extended Sobel operator
Parameters:
* src – The source image
* dst – The destination image; will have the same size and the same number of channels as src
* ddepth – The destination image depth
* xorder – Order of the derivative x
* yorder – Order of the derivative y
* ksize – Size of the extended Sobel kernel, must be 1, 3, 5 or 7
* scale – The optional scale factor for the computed derivative values (by default, no scaling is applied, see getDerivKernels() )
* delta – The optional delta value, added to the results prior to storing them in dst
* borderType – The pixel extrapolation method, see borderInterpolate()
*/
void EdgeDetectorSobel::process()
{
CvMatData srcPtr = m_inputPin->get();
CvMatData dstPtr = CvMatData::create( srcPtr.properties() );
// open for reading
const cv::Mat& src = srcPtr;
// open image for writing
cv::Mat& dst = dstPtr;
assert( m_xOrder == 1 || m_xOrder == 0 );
assert( m_yOrder == 1 || m_yOrder == 0 );
assert( m_kernelSize == 1 || m_kernelSize == 3 || m_kernelSize == 5 || m_kernelSize == 7 );
// do sobel operation
cv::Sobel( src, dst, dst.depth() , m_xOrder, m_yOrder,
m_kernelSize, m_scale, m_delta,
m_borderType.getSelectedValue() );
// publish output
m_outputPin->put( dstPtr );
}
bool EdgeDetectorCanny::process()
{
// get the source
CvMatData in = m_inputPin->get();
// get a new target image with the same properties as the src
CvMatData out = CvMatData::create( in.properties() );
// open for reading
const cv::Mat& src = in;
// open image for writing
cv::Mat& edges = out;
// do a canny edge detection operator of the image
// the input should be grayscaled
cv::Canny( src, edges, m_thresholdLow, m_thresholdHigh, m_apertureSize, m_l2Gradient );
// publish the new image
m_outputPin->put( out );
return true;
}
