int NumSequenceMatches(const TransformationParameter transform_param,
const Datum& datum, Phase phase) {
// Get crop sequence with Caffe seed 1701.
DataTransformer<Dtype>* transformer =
new DataTransformer<Dtype>(transform_param, phase);
const int crop_size = transform_param.crop_size();
int crop_h = transform_param.crop_h();
int crop_w = transform_param.crop_w();
if (crop_size > 0) {
crop_h = crop_w = crop_size;
}
Caffe::set_random_seed(seed_);
transformer->InitRand();
Blob<Dtype>* blob =
new Blob<Dtype>(1, datum.channels(), datum.height(), datum.width());
if (crop_h > 0 || crop_w > 0) {
blob->Reshape(1, datum.channels(), crop_h, crop_w);
}
vector<vector<Dtype> > crop_sequence;
for (int iter = 0; iter < this->num_iter_; ++iter) {
vector<Dtype> iter_crop_sequence;
transformer->Transform(datum, blob);
for (int j = 0; j < blob->count(); ++j) {
iter_crop_sequence.push_back(blob->cpu_data()[j]);
}
crop_sequence.push_back(iter_crop_sequence);
}
// Check if the sequence differs from the previous
int num_sequence_matches = 0;
for (int iter = 0; iter < this->num_iter_; ++iter) {
vector<Dtype> iter_crop_sequence = crop_sequence[iter];
transformer->Transform(datum, blob);
for (int j = 0; j < blob->count(); ++j) {
num_sequence_matches +=
(crop_sequence[iter][j] == blob->cpu_data()[j]);
}
}
return num_sequence_matches;
}
