int main() {
vigra::ImageImportInfo info("herc.jpg");
if (info.isGrayscale()) {
vigra::BImage in(info.width(), info.height());
vigra::importImage(info, destImage(in));
}
else {
vigra::BRGBImage in(info.width(), info.height());
vigra::BRGBImage out(info.width(), info.height());
vigra::RGBValue<int> offset(255, 255, 255);
vigra::importImage(info, destImage(in));
vigra::BRGBImage::Iterator dy = in.upperLeft();
vigra::BRGBImage::Iterator end = in.lowerRight();
vigra::BRGBImage::Iterator oy = out.upperLeft();
for (; dy.y != end.y && dy.y !=end.y-1; ++dy.y, ++oy.y) {
vigra::BRGBImage::Iterator dx = dy;
vigra::BRGBImage::Iterator ox = oy;
for (; dx.x != end.x; ++dx.x, ++ox.x) {
vigra::RGBValue<int> pix = *dx;
*ox = offset - pix;
}
}
vigra::exportImage(vigra::srcImageRange(out), vigra::ImageExportInfo("hercinv.jpg"));
}
return 0;
}
//---------------------------------------------------------
bool CViGrA_Morphology::On_Execute(void)
{
bool bRescale;
int Type, Radius;
double Rank;
CSG_Grid *pInput, *pOutput, Rescaled;
pInput = Parameters("INPUT") ->asGrid();
pOutput = Parameters("OUTPUT") ->asGrid();
Type = Parameters("TYPE") ->asInt();
Radius = Parameters("RADIUS") ->asInt();
Rank = Parameters("RANK") ->asDouble();
bRescale = Parameters("RESCALE") ->asBool();
//-----------------------------------------------------
if( bRescale )
{
Rescaled.Create(*Get_System(), SG_DATATYPE_Byte);
for(sLong i=0; i<Get_NCells() && Set_Progress_NCells(i); i++)
{
Rescaled.Set_Value(i, 0.5 + (pInput->asDouble(i) - pInput->Get_ZMin()) * 255.0 / pInput->Get_ZRange());
}
pInput = &Rescaled;
}
//-----------------------------------------------------
vigra::BImage Input, Output(Get_NX(), Get_NY());
Copy_Grid_SAGA_to_VIGRA(*pInput, Input, true);
switch( Type )
{
case 0: // Dilation
discDilation (srcImageRange(Input), destImage(Output), Radius);
break;
case 1: // Erosion
discErosion (srcImageRange(Input), destImage(Output), Radius);
break;
case 2: // Median
discMedian (srcImageRange(Input), destImage(Output), Radius);
break;
case 3: // User defined rank
discRankOrderFilter (srcImageRange(Input), destImage(Output), Radius, Rank);
break;
}
//-----------------------------------------------------
Copy_Grid_VIGRA_to_SAGA(*pOutput, Output, false);
pOutput->Set_Name(CSG_String::Format(SG_T("%s [%s]"), pInput->Get_Name(), Get_Name().c_str()));
return( true );
}
int main(int argc, char * const *argv)
{
int M = 256;
cv::Size imsize(512, 512);
cv::Size psize(32,32);
int lbdType;
if (strncmp(argv[1], "freak", 5) == 0)
{
lbdType = lbd::eTypeFreak;;
}
else
{
if (strncmp(argv[1], "brief", 5) == 0)
{
lbdType = lbd::eTypeBrief;
}
else
{
std::cerr << "Error. The parameter should be either freak or brief.\n";
return -1;
}
}
lts2::LBDOperator *LBD = lts2::CreateLbdOperator(lbdType, M);
LBD->initWithPatchSize(psize);
cv::Mat destImage(cv::Size(imsize), CV_8UC3);
LBD->drawSelfAsCircles(destImage);
cv::imwrite(argv[2], destImage);
return EXIT_SUCCESS;
}
void EdgeHistogram::InitializeImage(const vigra::FVector3Image& image) {
// Consider grayscale image
vigra::FImage image_gray(image.width(), image.height());
vigra::transformImage(srcImageRange(image), destImage(image_gray),
VectorMeanTransformAccessor<vigra::FVector3Image::Accessor>());
// 1. Compute canny edge image
vigra::BImage canny(image_gray.width(), image_gray.height());
canny = 0;
vigra::cannyEdgeImage(srcImageRange(image_gray), destImage(canny),
1, 15, 255); // scale, threshold, edgevalue
//vigra::exportImage(srcImageRange(canny), "canny.png");
// 2. Get gradient magnitude and orientation of original image
vigra::FVector2Image gradient(canny.width(), canny.height());
vigra::gradientBasedTransform(srcImageRange(image_gray),
destImage(gradient),
MagnitudeOrientationGradientFunctor<float>(undirected_edges));
// 3. Produce matrices: histogram bin and gradient magnitude for each pixel
bin_image.resize(gradient.height(), gradient.width());
gmm::fill(bin_image, 0);
bin_value.resize(gradient.height(), gradient.width());
gmm::fill(bin_value, 0);
for (int y = 0; y < gradient.height(); ++y) {
for (int x = 0; x < gradient.width(); ++x) {
// No edge -> skip
if (canny(x, y) == 0)
continue;
// Edge: calculate bin index and gradient magnitude
double magnitude = gradient(x, y)[0];
double orientation = gradient(x, y)[1]; // range 0 to 1.
assert(orientation >= 0.0 && orientation <= 1.0);
if (orientation >= 1.0)
orientation = 0.0;
orientation *= static_cast<double>(bin_count);
int orientation_index = static_cast<int>(orientation) % bin_count;
// Bin value of zero denotes no edge.
bin_image(y, x) = orientation_index + 1;
bin_value(y, x) = magnitude;
}
}
}
void PreviewColorPickerTool::CalcCorrectionForImage(unsigned int i,vigra::Point2D pos)
{
const HuginBase::SrcPanoImage & img = helper->GetPanoramaPtr()->getImage(i);
HuginBase::ImageCache::ImageCacheRGB8Ptr cacheImage8 = HuginBase::ImageCache::getInstance().getImage(img.getFilename())->get8BitImage();
//copy only region to be inspected
vigra::BRGBImage tempImage(2*ColorPickerSize,2*ColorPickerSize);
vigra::copyImage(vigra::make_triple((*cacheImage8).upperLeft() + pos + vigra::Point2D(-ColorPickerSize,-ColorPickerSize),
(*cacheImage8).upperLeft() + pos + vigra::Point2D( ColorPickerSize, ColorPickerSize),
vigra::BRGBImage::Accessor()),
destImage(tempImage) );
//now apply photometric corrections
HuginBase::Photometric::InvResponseTransform<vigra::UInt8, double> invResponse(img);
if (helper->GetPanoramaPtr()->getOptions().outputMode == HuginBase::PanoramaOptions::OUTPUT_LDR)
{
// select exposure and response curve for LDR output
std::vector<double> outLut;
vigra_ext::EMoR::createEMoRLUT(helper->GetPanoramaPtr()->getImage(0).getEMoRParams(), outLut);
vigra_ext::enforceMonotonicity(outLut);
invResponse.setOutput(1.0/pow(2.0,helper->GetPanoramaPtr()->getOptions().outputExposureValue), outLut,
255.0);
}
else
{
invResponse.setHDROutput(true,1.0/pow(2.0,helper->GetPanoramaPtr()->getOptions().outputExposureValue));
}
vigra::DRGBImage floatTemp(tempImage.size());
vigra_ext::transformImageSpatial(srcImageRange(tempImage), destImage(floatTemp), invResponse, vigra::Diff2D(pos.x-ColorPickerSize,pos.y-ColorPickerSize));
//calculate average
vigra::FindAverage<vigra::DRGBImage::PixelType> average;
vigra::inspectImage(srcImageRange(floatTemp), average);
//range check
vigra::RGBValue<double> RGBaverage=average.average();
if(RGBaverage[0]>2 && RGBaverage[0]<253 &&
RGBaverage[1]>2 && RGBaverage[1]<253 &&
RGBaverage[2]>2 && RGBaverage[2]<253)
{
m_red+=RGBaverage[0]/RGBaverage[1];
m_blue+=RGBaverage[2]/RGBaverage[1];
m_count++;
};
};
void GCOutputBoykovWorker::run()
{
const int width = m_SourceImage.width();
const int height = m_SourceImage.height();
const int nLabels = 2;
cv::Mat src(height, width, CV_8UC3, m_SourceImage.bits(), m_SourceImage.bytesPerLine());
// Allocate graph
int num_nodes = width * height;
int num_edges = (width-1)*height + width*(height-1);
typedef Graph<int,int,int> GraphType;
GraphType* graph = new GraphType(num_nodes, num_edges);
graph->add_node(num_nodes);
// Initialize Data Term
generateDataTerm([graph,width](int x, int y, int dterm1, int dterm2){
GraphType::node_id node = y * width + x;
graph->add_tweights(node, dterm1, dterm2);
});
// Initialize Smoothness Term
generateSmoothTerm([graph,width](int x1, int y1, int x2, int y2, int cap1, int cap2){
GraphType::node_id node1, node2;
node1 = y1 * width + x1, node2 = y2 * width + x2;
graph->add_edge(node1, node2, cap1, cap2);
});
// Compute
int flow = graph->maxflow();
qDebug("Flow = %d", flow);
// Read Result
QImage destImage(width, height, QImage::Format_RGB888);
cv::Mat dst(height, width, CV_8UC3, destImage.bits(), destImage.bytesPerLine());
for (int y = 0; y < dst.rows; ++y) {
for (int x = 0; x < dst.cols; ++x) {
GraphType::node_id node = y * width + x;
if (graph->what_segment(node) == GraphType::SOURCE) {
dst.at<cv::Vec3b>(y,x)[0] = 255;
dst.at<cv::Vec3b>(y,x)[1] = 255;
dst.at<cv::Vec3b>(y,x)[2] = 255;
} else {
dst.at<cv::Vec3b>(y,x)[0] = 0;
dst.at<cv::Vec3b>(y,x)[1] = 0;
dst.at<cv::Vec3b>(y,x)[2] = 0;
}
}
}
delete graph;
emit completed(destImage);
}
void MainWindow::applyMedianFilter()
{
int filterRadius = ui->lineEdit->text().toInt();
if (filterRadius > 30 || filterRadius <= 0)
{
QMessageBox::warning(this, tr("Incorrect radius"), tr("Please choose radius between 1 and 30"), QMessageBox::Ok);
return;
}
if(!ui->labelImage->pixmap())
{
QMessageBox::warning(this, tr("No image"), tr("Please select image."), QMessageBox::Ok);
return;
}
int imageHeight = image.height(), imageWeight = image.width();
//qDebug()<<"image size"<<image.height()<<image.width();
if (filterRadius > imageHeight/2 || filterRadius >imageWeight/2)
{
QMessageBox::warning(this, tr("Incorrect radius"), tr("The chosen filter radius is too big for this image!"), QMessageBox::Ok);
return;
}
MedianFilter medianFilter;
element* resImageBits;
resImageBits = new element[imageHeight * imageWeight];
if (!resImageBits)
return;
medianFilter.applyMedianFilter((element*)image.bits(), resImageBits, imageHeight, imageWeight, filterRadius);
if(resImageBits)
{
QImage destImage((uchar*)resImageBits, imageWeight, imageHeight, image.format());
QPixmap pixRes;
pixRes.convertFromImage(destImage);
ui->labelMedianFilterResult->setPixmap(pixRes.scaled(MAXSIDE, MAXSIDE, Qt::KeepAspectRatio));
}
else
qDebug()<<"median filter failed";
delete [] resImageBits;
/*
QImage imageTestGray8 = ui->labelImage->pixmap()->toImage().convertToFormat(QImage::Format_Grayscale8);
QImage destImageTestGray8;
qDebug()<<imageTestGray8<<imageTestGray8.pixelFormat().channelCount() <<imageTestGray8.pixelFormat().bitsPerPixel();
QPixmap pixmapRezGray8;
pixmapRezGray8.convertFromImage(destImageTestGray8);
ui->labelMedianFilterResult->setPixmap(pixmapRezGray8);
// ctmf(image.bits(), destImage.bits(), image.width(), image.height(),
// image.pixelFormat().bitsPerPixel(), image.pixelFormat().bitsPerPixel(), image.pixelFormat().channelCount(), filterRadius, 256*1024);
*/
}
bool RotoCanvas::exportFrame(QDir destinationDir, const QString &sequenceName, const char *fileFormat, int frameNumber)
{
bool result=false;
QString formatString=QString(fileFormat).toLower();
if (this->loadedFI!=nullptr) {
QString destPath=getFramePath(frameNumber);//destinationDir.filePath(sequenceName+RotoCanvas::getZeroPadded(frameNumber, this->getSeqDigitCount())+"."+QString(fileFormat));
QImage destImage(originalImage.size(), QImage::Format_ARGB32);
destImage.fill(qRgba(0,0,0,0));
QPainter destPainter(&destImage);
for (int i=0; i<layerCount; i++) {
if (i<layerPtrs.length()) {
if (layerPtrs[i]!=nullptr) {
destPainter.drawImage(0,0,layerPtrs[i]->image);
}
}
}
//(formatString=="png")?QImage::Format_ARGB32:QImage::Format_RGB888
result=destImage.save(destPath, fileFormat);
}
return result;
}
void CViGrA_Watershed::Segmentation(TImage_In &Input, TImage_Out &Output, double Scale, bool bEdges)
{
typedef typename vigra::NumericTraits<typename TImage_In::value_type>::RealPromote TmpType;
vigra::BasicImage<TmpType> gradientx (Get_NX(), Get_NY());
vigra::BasicImage<TmpType> gradienty (Get_NX(), Get_NY());
vigra::FImage gradientmag (Get_NX(), Get_NY());
vigra::IImage labels (Get_NX(), Get_NY());
//-----------------------------------------------------
// calculate the x- and y-components of the image gradient at given scale
Process_Set_Text(_TL("calculate gradients"));
recursiveFirstDerivativeX (srcImageRange(Input) , destImage(gradientx), Scale);
recursiveSmoothY (srcImageRange(gradientx) , destImage(gradientx), Scale);
recursiveFirstDerivativeY (srcImageRange(Input) , destImage(gradienty), Scale);
recursiveSmoothX (srcImageRange(gradienty) , destImage(gradienty), Scale);
//-----------------------------------------------------
// transform components into gradient magnitude
Process_Set_Text(_TL("calculate gradient magnitude"));
combineTwoImages(
srcImageRange(gradientx),
srcImage(gradienty),
destImage(gradientmag),
GradientSquaredMagnitudeFunctor()
);
//-----------------------------------------------------
// find the local minima of the gradient magnitude (might be larger than one pixel)
Process_Set_Text(_TL("find local minima"));
labels = 0;
extendedLocalMinima(srcImageRange(gradientmag), destImage(labels), 1);
//-----------------------------------------------------
// label the minima just found
Process_Set_Text(_TL("label minima"));
int max_region_label = labelImageWithBackground(srcImageRange(labels), destImage(labels), false, 0);
//-----------------------------------------------------
// create a statistics functor for region growing
vigra::ArrayOfRegionStatistics<vigra::SeedRgDirectValueFunctor<float> >gradstat(max_region_label);
//-----------------------------------------------------
// perform region growing, starting from the minima of the gradient magnitude;
// as the feature (first input) image contains the gradient magnitude,
// this calculates the catchment basin of each minimum
Process_Set_Text(_TL("perform region growing"));
seededRegionGrowing(srcImageRange(gradientmag), srcImage(labels), destImage(labels), gradstat);
//-----------------------------------------------------
// initialize a functor to determine the average gray-value or color for each region (catchment basin) just found
vigra::ArrayOfRegionStatistics<vigra::FindAverage<TmpType> >averages(max_region_label);
//-----------------------------------------------------
// calculate the averages
Process_Set_Text(_TL("calculate averages"));
inspectTwoImages(srcImageRange(Input), srcImage(labels), averages);
//-----------------------------------------------------
// write the averages into the destination image (the functor 'averages' acts as a look-up table)
transformImage(srcImageRange(labels), destImage(Output), averages);
//-----------------------------------------------------
// mark the watersheds (region boundaries) black
if( bEdges )
{
regionImageToEdgeImage(srcImageRange(labels), destImage(Output), vigra::NumericTraits<typename TImage_Out::value_type>::zero());
}
}
// MAIN
int main(int argc, char* argv[]) {
try
{
DataParams params(argc, argv);
params.doSanityChecks();
int stacksize = params.shape(2);
Size2D size2 (params.shape(0), params.shape(1)); // isnt' there a slicing operator?
if(params.getVerbose()) {
std::cout << "Images with Shape: " << params.shape() << std::endl;
std::cout << "Processing a stack of " << stacksize << " images..." << std::endl;
}
// found spots. One Vector over all images in stack
// the inner set contains all spots in the image
std::vector<std::set<Coord<float> > > res_coords(stacksize);
DImage res((size2-Diff2D(1,1))*params.getFactor()+Diff2D(1,1));
// check if outfile is writable, otherwise throw error -> exit
exportImage(srcImageRange(res), ImageExportInfo(params.getOutFile().c_str()));
std::ofstream cf;
if(!params.getCoordsFile().empty()) {
cf.open(params.getCoordsFile());
vigra_precondition(cf.is_open(), "Could not open coordinate-file for writing.");
}
USE_NESTED_TICTOC;
//USETICTOC;
TICPUSH; // measure the time
// STORM Algorithmut
CliProgressFunctor func;
wienerStorm(params, res_coords, func);
// resulting image
drawCoordsToImage<Coord<float> >(res_coords, res);
int numSpots = 0;
if(cf.is_open()) {
numSpots = saveCoordsFile(params, cf, res_coords);
cf.close();
}
// end: done.
std::cout << std::endl << TOCS << std::endl;
std::cout << "detected " << numSpots << " spots." << std::endl;
// some maxima are very strong so we scale the image as appropriate :
double maxlim = 0., minlim = 0;
findMinMaxPercentile(res, 0., minlim, 0.996, maxlim);
std::cout << "cropping output values to range [" << minlim << ", " << maxlim << "]" << std::endl;
if(maxlim > minlim) {
transformImage(srcImageRange(res), destImage(res), ifThenElse(Arg1()>Param(maxlim), Param(maxlim), Arg1()));
}
exportImage(srcImageRange(res), ImageExportInfo(params.getOutFile().c_str()));
if (!params.getSettingsFile().empty())
params.save();
}
catch (vigra::StdException & e)
{
std::cout<<"There was an error:"<<std::endl;
std::cout << e.what() << std::endl;
return 1;
}
return 0;
}
// Compute MOPs descriptors.
void ComputeMOPSDescriptors(CFloatImage &image, FeatureSet &features)
{
int w = image.Shape().width; // image width
int h = image.Shape().height; // image height
// Create grayscale image used for Harris detection
CFloatImage grayImage=ConvertToGray(image);
// Apply a 7x7 gaussian blur to the grayscale image
CFloatImage blurImage(w,h,1);
Convolve(grayImage, blurImage, ConvolveKernel_7x7);
// Transform matrices
CTransform3x3 xform;
CTransform3x3 trans1;
CTransform3x3 rotate;
CTransform3x3 scale;
CTransform3x3 trans2;
// Declare additional variables
float pxl; // pixel value
double mean, sq_sum, stdev; // variables for normailizing data set
// This image represents the window around the feature you need to compute to store as the feature descriptor
const int windowSize = 8;
CFloatImage destImage(windowSize, windowSize, 1);
for (vector<Feature>::iterator i = features.begin(); i != features.end(); i++) {
Feature &f = *i;
// Compute the transform from each pixel in the 8x8 image to sample from the appropriate
// pixels in the 40x40 rotated window surrounding the feature
trans1 = CTransform3x3::Translation(f.x, f.y); // translate window to feature point
rotate = CTransform3x3::Rotation(f.angleRadians * 180.0 / PI); // rotate window by angle
scale = CTransform3x3::Scale(5.0); // scale window by 5
trans2 = CTransform3x3::Translation(-windowSize/2, -windowSize/2); // translate window to origin
// transform resulting from combining above transforms
xform = trans1*scale*rotate*trans2;
//Call the Warp Global function to do the mapping
WarpGlobal(blurImage, destImage, xform, eWarpInterpLinear);
// Resize data field for a 8x8 square window
f.data.resize(windowSize * windowSize);
// Find mean of window
mean = 0;
for (int y = 0; y < windowSize; y++) {
for (int x = 0; x < windowSize; x++) {
pxl = destImage.Pixel(x, y, 0);
f.data[y*windowSize + x] = pxl;
mean += pxl/(windowSize*windowSize);
}
}
// Find standard deviation of window
sq_sum = 0;
for (int k = 0; k < windowSize*windowSize; k++) {
sq_sum += (mean - f.data[k]) * (mean - f.data[k]);
}
stdev = sqrt(sq_sum/(windowSize*windowSize));
// Normalize window to have 0 mean and unit variance by subtracting
// by mean and dividing by standard deviation
for (int k = 0; k < windowSize*windowSize; k++) {
f.data[k] = (f.data[k]-mean)/stdev;
}
}
}
void CenterHorizontally::centerHorizontically(PanoramaData& panorama)
{
vigra::Size2D panoSize(360,180);
// remap into minature pano.
PanoramaOptions opts;
opts.setHFOV(360);
opts.setProjection(PanoramaOptions::EQUIRECTANGULAR);
opts.setWidth(360);
opts.setHeight(180);
// remap image
vigra::BImage panoAlpha(panoSize);
Nona::RemappedPanoImage<vigra::BImage, vigra::BImage> remapped;
// use selected images.
const UIntSet allActiveImgs(panorama.getActiveImages());
if (allActiveImgs.empty())
{
// do nothing if there are no images
return;
}
//only check unlinked images
UIntSet activeImgs;
for (UIntSet::const_iterator it = allActiveImgs.begin(); it!= allActiveImgs.end(); ++it)
{
const SrcPanoImage & img=panorama.getImage(*it);
bool consider=true;
if(img.YawisLinked())
{
for(UIntSet::const_iterator it2=activeImgs.begin(); it2!=activeImgs.end(); ++it2)
{
if(img.YawisLinkedWith(panorama.getSrcImage(*it2)))
{
consider=false;
break;
};
};
};
if(consider)
activeImgs.insert(*it);
};
for (UIntSet::iterator it = activeImgs.begin(); it != activeImgs.end(); ++it)
{
remapped.setPanoImage(panorama.getSrcImage(*it), opts, vigra::Rect2D(0,0,360,180));
// calculate alpha channel
remapped.calcAlpha();
// copy into global alpha channel.
vigra::copyImageIf(vigra_ext::applyRect(remapped.boundingBox(),
vigra_ext::srcMaskRange(remapped)),
vigra_ext::applyRect(remapped.boundingBox(),
vigra_ext::srcMask(remapped)),
vigra_ext::applyRect(remapped.boundingBox(),
destImage(panoAlpha)));
}
// get field of view
std::vector<int> borders;
bool colOccupied = false;
for (int h=0; h < 360; h++) {
bool curColOccupied = false;
for (int v=0; v< 180; v++) {
if (panoAlpha(h,v)) {
// pixel is valid
curColOccupied = true;
}
}
if ((colOccupied && !curColOccupied) ||
(!colOccupied && curColOccupied))
{
// change in position, save point.
borders.push_back(h-180);
colOccupied = curColOccupied;
}
}
int lastidx = borders.size() -1;
if (lastidx == -1) {
// empty pano
return;
}
if (colOccupied) {
// we have reached the right border, and the pano is still valid
// shift right fragments by 360 deg
// |11 2222| -> | 222211 |
std::vector<int> newBorders;
newBorders.push_back(borders[lastidx]);
for (int i = 0; i < lastidx; i++) {
newBorders.push_back(borders[i]+360);
}
borders = newBorders;
}
const double dYaw=(borders[0] + borders[lastidx])/2;
// apply yaw shift, takes also translation parameters into account
RotatePanorama(panorama, -dYaw, 0, 0).run();
}