QImage mutableSquareImageContainer::scaledImage() const {
QHash<triC, QImage> colorSquares;
const QVector<triC>& squareColors = colors();
const int curDimension = scaledDimension();
const grid baseImage(image(), originalDimension_);
QImage squareImage(curDimension, curDimension, QImage::Format_RGB32);
for (int i = 0, size = squareColors.size(); i < size; ++i) {
const triC& thisImageColor = squareColors[i];
squareImage.fill(thisImageColor.qrgb());
colorSquares[thisImageColor] = squareImage;
}
QImage returnImage(scaledSize(), QImage::Format_RGB32);
QPainter painter(&returnImage);
for (int yBox = 0; yBox < heightSquareCount_; ++yBox) {
for (int xBox = 0; xBox < widthSquareCount_; ++xBox) {
const triC& thisSquareColor =
baseImage(xBox*originalDimension_, yBox*originalDimension_);
painter.drawImage(QPoint(xBox*curDimension, yBox*curDimension),
colorSquares[thisSquareColor]);
}
}
return returnImage;
}
cv::Mat ImageProcessor::covariance(cv::Mat& targetImage, int window) {
cv::Mat kernel = cv::Mat::ones( window, window, CV_32F );
cv::Mat originalImage;
targetImage.convertTo(originalImage, CV_32F);
//calculate mean
cv::Mat mean(originalImage.size(), CV_32F);
cv::filter2D(originalImage, mean, -1, kernel, cv::Point(-1,-1), 0, cv::BORDER_WRAP);
//calculate second moment
cv::Mat squareImage(originalImage.size(), CV_32F);
cv::pow(originalImage, 2, squareImage);
cv::Mat varImage(originalImage.size(), CV_32F);
cv::filter2D(squareImage, varImage, -1, kernel, cv::Point(-1,-1), 0, cv::BORDER_WRAP);
cv::Mat meanSq(originalImage.size(), CV_32F);
cv::pow(mean, 2, meanSq);
cv::Mat variance = varImage - meanSq;
//rescale
double lapmin, lapmax;
cv::minMaxLoc(variance,&lapmin,&lapmax);
double scale = 255/ std::max(-lapmin,lapmax);
cv::Mat resultImage;
cv::convertScaleAbs(variance, resultImage, scale);
return resultImage;
}
/*------------------------------------------------*/
int main(int argc,char **argv)
{
int i,j,k;
int length,width,tailleCarre;
float** MatriceImgR;
float** MatriceImgI;
float** MatriceImgM;
// Generation d'une image carre blanc sur fond noir
length = 128;
width = 128;
printf("Veuillez entrer la taille du carre: ");
scanf("%d", &tailleCarre);
MatriceImgR = squareImage(length, width, tailleCarre);
// Sauvegarde de MatriceImgR sous forme d'image pgm
SaveImagePgm(NAME_IMG_OUT,MatriceImgR,length,width);
// Allocation memoire pour la FFT
MatriceImgI=fmatrix_allocate_2d(length,width);
MatriceImgM=fmatrix_allocate_2d(length,width);
// Initialisation a zero de toutes les matrices
for(i=0;i<length;i++)
{
for(j=0;j<width;j++)
{
MatriceImgI[i][j]=0.0;
MatriceImgM[i][j]=0.0;
}
}
// Decalage de l'image pour obtenir un spectre au centre
shiftSpatial(MatriceImgR,length,width);
// FFT
FFTDD(MatriceImgR,MatriceImgI,length,width);
// Module
Mod(MatriceImgM,MatriceImgR,MatriceImgI,length,width);
// Pour visu
//RecalLog(MatriceImgM,length,width);
Recal(MatriceImgM,length,width);
Mult(MatriceImgM,20,length,width);
// Sauvegarde de MatriceImgM sous forme d'image pgm
SaveImagePgm(NAME_SPC_OUT,MatriceImgM,length,width);
// Liberation memoire pour les matrices
free_fmatrix_2d(MatriceImgR);
free_fmatrix_2d(MatriceImgI);
free_fmatrix_2d(MatriceImgM);
// Retour sans probleme
printf("\n C'est fini ... \n\n\n");
return 0;
}