in IsometricPatternMatcher/DotExtractor.h [124:136]
void loadIrImage(const surreal_opensource::Image<uint8_t>& input_image) {
const Eigen::Vector2i imgDim = input_image.Dim();
if (width_ != (size_t)imgDim(0) || height_ != (size_t)imgDim(1)) {
width_ = imgDim(0);
height_ = imgDim(1);
blurredImage_.Reinitialise(width_, height_);
rawImage8_.Reinitialise(width_, height_);
}
// apply blur
rawImage8_.CopyFrom(input_image);
blur(blurredImage_, rawImage8_);
}