img = img.halved();
startScale *= 2.0;
}
}
if (preprocSigma > 0.0) {
GaussianArray gaussianPre = new GaussianArray(preprocSigma);
img = gaussianPre.convolve(img);
}
Pyramid pyr = new Pyramid();
pyr.buildOctaves(img, startScale, scaleSpaceLevels, octaveSigma, minimumRequiredPixelsize);