void DetectorTrainer::setFeatures(FeatureParams params, const shared_ptr<ImageFilter>& filter, const shared_ptr<ImageFilter>& imageFilter) {
featureParams = params;
aspectRatio = params.windowAspectRatio();
aspectRatioInv = 1.0 / aspectRatio;
this->imageFilter = imageFilter;
this->filter = filter;
if (!imageFilter)
featureExtractor = make_shared<AggregatedFeaturesExtractor>(filter,
params.windowSizeInCells, params.cellSizeInPixels, params.octaveLayerCount);
else
featureExtractor = make_shared<AggregatedFeaturesExtractor>(imageFilter, filter,
params.windowSizeInCells, params.cellSizeInPixels, params.octaveLayerCount);
}
