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Diffstat (limited to 'src/filters.h')
-rw-r--r-- | src/filters.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/filters.h b/src/filters.h new file mode 100644 index 0000000..980bb8b --- /dev/null +++ b/src/filters.h @@ -0,0 +1,65 @@ +/* + FLAM3 - cosmic recursive fractal flames + Copyright (C) 1992-2009 Spotworks LLC + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef filters_included +#define filters_included + +#include "private.h" + +#define DE_THRESH 100 + +/* Spatial filter kernels */ +#define flam3_gaussian_kernel 0 +#define flam3_hermite_kernel 1 +#define flam3_box_kernel 2 +#define flam3_triangle_kernel 3 +#define flam3_bell_kernel 4 +#define flam3_b_spline_kernel 5 +#define flam3_lanczos3_kernel 6 +#define flam3_lanczos2_kernel 7 +#define flam3_mitchell_kernel 8 +#define flam3_blackman_kernel 9 +#define flam3_catrom_kernel 10 +#define flam3_hamming_kernel 11 +#define flam3_hanning_kernel 12 +#define flam3_quadratic_kernel 13 + +/* Temporal filters */ +#define flam3_temporal_box 0 +#define flam3_temporal_gaussian 1 +#define flam3_temporal_exp 2 + +typedef struct { + int max_filtered_counts; + int max_filter_index; + int kernel_size; + double *filter_widths; + double *filter_coefs; +} flam3_de_helper; + +extern double flam3_spatial_support[flam3_num_spatialfilters]; + +double flam3_spatial_filter(int knum, double x); +int flam3_create_spatial_filter(flam3_frame *spec, int field, double **filter); +flam3_de_helper flam3_create_de_filters(double max_rad, double min_rad, double curve, int ss); +double flam3_create_temporal_filter(int numsteps, int filter_type, double filter_exp, double filter_width, + double **temporal_filter, double **temporal_deltas); + +#endif + + |