diff options
Diffstat (limited to 'include/sane/sanei_ir.h')
| -rw-r--r-- | include/sane/sanei_ir.h | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/include/sane/sanei_ir.h b/include/sane/sanei_ir.h index bbfd6d5..da70f40 100644 --- a/include/sane/sanei_ir.h +++ b/include/sane/sanei_ir.h @@ -12,7 +12,7 @@ * - 2) find the dirt * - 3) replace the dirt * - * - 1) is mainly adressed by sanei_ir_spectral_clean + * - 1) is mainly addressed by sanei_ir_spectral_clean * - 2) by sanei_ir_filter_madmean * - 3) by sanei_ir_dilate_mean */ @@ -185,7 +185,7 @@ sanei_ir_to_8bit (SANE_Parameters * params, const SANE_Uint *in_img, * @brief Allocate and initialize logarithmic lookup table * * @param[in] len length of table, usually 1 << depth - * @param[out] lut_ln adress of pointer to allocated table + * @param[out] lut_ln address of pointer to allocated table * * @return * - SANE_STATUS_GOOD - success @@ -208,9 +208,9 @@ SANE_Status sanei_ir_ln_table (int len, double **lut_ln); * - SANE_STATUS_GOOD - success * - SANE_STATUS_NO_MEM - if out of memory * - * This routine is based on the observation that the relation beween the infrared value + * This routine is based on the observation that the relation between the infrared value * ired and the red value red of an image point can be described by ired = b + a * ln (red). - * First points are randomly sampled to calculate the linear regression coefficent a. + * First points are randomly sampled to calculate the linear regression coefficient a. * Then ired' = ired - a * ln (red) is calculated for each pixel. Finally, the ir' image * is scaled between 0 and maximal value. For the logarithms a lookup table is used. * Negative films show very little spectral overlap but positive film usually has to be @@ -255,8 +255,8 @@ sanei_ir_filter_mean (const SANE_Parameters * params, * @param[in] in_img pointer to grey scale image * @param[out] out_img address of pointer to newly allocated binary image * @param[in] win_size Size of filtering window - * @param[in] a_val Parameter, below is definetly clean - * @param[in] b_val Parameter, above is definetly noisy + * @param[in] a_val Parameter, below is definitely clean + * @param[in] b_val Parameter, above is definitely noisy * * @return * - SANE_STATUS_GOOD - success @@ -267,7 +267,7 @@ sanei_ir_filter_mean (const SANE_Parameters * params, * The dirty pixels which we wish to remove are always darker than the real signal. But * at high resolutions the scanner may generate some noise and the ired cleaning step can * reverse things. So a maximum filter will not do. - * The second median is replaced by a mean filter to reduce computation time. Inspite of + * The second median is replaced by a mean filter to reduce computation time. In spite of * these changes Crnojevic's recommendations for the choice of the parameters "a" and "b" * are still valid when scaled to the color depth. * |