static const int FILTER_ABS_COSINE;
static const int FILTER_SHEPP;
static const int FILTER_BANDLIMIT;
static const int FILTER_SINC;
static const int FILTER_G_HAMMING;
static const int FILTER_ABS_COSINE;
static const int FILTER_SHEPP;
static const int FILTER_BANDLIMIT;
static const int FILTER_SINC;
static const int FILTER_G_HAMMING;