piuspatch: only-pie/include/sane/sanei

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00001 
00021 #ifndef SANEI_IR_H
00022 #define SANEI_IR_H
00023 
00024 #include <stdint.h>
00025 
00026 #define SAMPLE_SIZE     40000                           
00028 #define HISTOGRAM_SHIFT 8                               
00029 #define HISTOGRAM_SIZE  (1 << HISTOGRAM_SHIFT)
00030 
00031 #define SAFE_LOG(x) ( ((x) > 0.0) ? log ((x)) : (0.0) ) 
00033 #define MAD_WIN2_SIZE(x) ( (((x) * 4) / 3) | 1 )        
00038 typedef union
00039 {
00040   uint8_t *b8;                  
00041   uint16_t *b16;                
00042 }
00043 SANEI_IR_bufptr;
00044 
00045 
00050 extern void sanei_ir_init (void);
00051 
00066 extern SANE_Status
00067 sanei_ir_create_norm_histogram (const SANE_Parameters * params,
00068                            const SANEI_IR_bufptr img_data,
00069                            double ** histogram);
00070 
00093 extern SANE_Status
00094 sanei_ir_threshold_yen (const SANE_Parameters * params,
00095                          double * norm_histo, int *thresh);
00096 
00113 extern SANE_Status
00114 sanei_ir_threshold_otsu (const SANE_Parameters * params,
00115                           double * norm_histo, int *thresh);
00116 
00136 extern SANE_Status
00137 sanei_ir_threshold_maxentropy (const SANE_Parameters * params,
00138                                double * norm_histo, int *thresh);
00139 
00157 SANE_Status
00158 sane_ir_RGB_luminance (SANE_Parameters * params, const SANEI_IR_bufptr * in_img,
00159                        SANEI_IR_bufptr * out_img, SANE_Bool scale8);
00160 
00179 extern SANE_Status
00180 sane_ir_to_8bit (SANE_Parameters * params, const SANEI_IR_bufptr in_img,
00181                  SANE_Parameters * out_params, SANEI_IR_bufptr *out_img);
00182 
00195 SANE_Status sane_ir_ln_table (int len, double **lut_ln);
00196 
00221 extern SANE_Status
00222 sane_ir_spectral_clean (const SANE_Parameters * params, double *lut_ln,
00223                         const SANEI_IR_bufptr red_data,
00224                         SANEI_IR_bufptr ir_data);
00225 
00244 extern SANE_Status
00245 sanei_ir_filter_mean (const SANE_Parameters * params,
00246                       const SANEI_IR_bufptr in_img, SANEI_IR_bufptr out_img,
00247                       int win_rows, int win_cols);
00248 
00249 
00281 extern SANE_Status
00282 sanei_ir_filter_madmean (const SANE_Parameters * params,
00283                          const SANEI_IR_bufptr in_img,
00284                          SANE_Byte ** out_img, int win_size,
00285                          int a_val, int b_val);
00286 
00287 
00296 void
00297 sanei_ir_add_threshold (const SANE_Parameters * params,
00298                         const SANEI_IR_bufptr in_img,
00299                         SANE_Byte * mask_img, int threshold);
00300 
00301 
00321 void
00322 sane_ir_manhattan_dist (const SANE_Parameters * params,
00323                         const SANE_Byte * mask_img, unsigned int *dist_map,
00324                         unsigned int *idx_map, unsigned int erode);
00325 
00326 
00338 void
00339 sane_ir_dilate (const SANE_Parameters * params, SANE_Byte * mask_img,
00340                 unsigned int *dist_map, unsigned int *idx_map, int by);
00341 
00356 void
00357 sanei_ir_find_crop (const SANE_Parameters * params,
00358                     unsigned int * dist_map, int inner, int * edges);
00359 
00383 SANE_Status
00384 sanei_ir_dilate_mean (const SANE_Parameters * params,
00385                       SANEI_IR_bufptr * in_img,
00386                       SANE_Byte * mask_img,
00387                       int dist_max, int expand, int win_size,
00388                       SANE_Bool smooth, int inner,
00389                       int *crop);
00390 
00391 
00392 #endif /* not SANEI_IR_H */
00393