Method spatial_size

tensorflow/stream_executor/dnn.h:396–398

 private:
  absl::Span<const int64> spatial_size() const {
    return AsInt64Slice(tensor_.dimensions()).subspan(2);
  }

  absl::Span<int64> spatial_size() {
    return AsInt64Slice(tensor_.mutable_dimensions()).subspan(2);