| #ifdef ISP2401 |
| /** |
| Support for Intel Camera Imaging ISP subsystem. |
| Copyright (c) 2010 - 2015, Intel Corporation. |
| |
| This program is free software; you can redistribute it and/or modify it |
| under the terms and conditions of the GNU General Public License, |
| version 2, as published by the Free Software Foundation. |
| |
| This program is distributed in the hope 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. |
| */ |
| |
| #ifndef _IA_CSS_TNR3_TYPES_H |
| #define _IA_CSS_TNR3_TYPES_H |
| |
| /** @file |
| * CSS-API header file for Temporal Noise Reduction v3 (TNR3) kernel |
| */ |
| |
| /** |
| * \brief Number of piecewise linear segments. |
| * \details The parameters to TNR3 are specified as a piecewise linear segment. |
| * The number of such segments is fixed at 3. |
| */ |
| #define TNR3_NUM_SEGMENTS 3 |
| |
| /** Temporal Noise Reduction v3 (TNR3) configuration. |
| * The parameter to this kernel is fourfold |
| * 1. Three piecewise linear graphs (one for each plane) with three segments |
| * each. Each line graph has Luma values on the x axis and sigma values for |
| * each plane on the y axis. The three linear segments may have a different |
| * slope and the point of Luma value which where the slope may change is called |
| * a "Knee" point. As there are three such segments, four points need to be |
| * specified each on the Luma axis and the per plane Sigma axis. On the Luma |
| * axis two points are fixed (namely 0 and maximum luma value - depending on |
| * ISP bit depth). The other two points are the points where the slope may |
| * change its value. These two points are called knee points. The four points on |
| * the per plane sigma axis are also specified at the interface. |
| * 2. One rounding adjustment parameter for each plane |
| * 3. One maximum feedback threshold value for each plane |
| * 4. Selection of the reference frame buffer to be used for noise reduction. |
| */ |
| struct ia_css_tnr3_kernel_config { |
| unsigned int maxfb_y; /**< Maximum Feedback Gain for Y */ |
| unsigned int maxfb_u; /**< Maximum Feedback Gain for U */ |
| unsigned int maxfb_v; /**< Maximum Feedback Gain for V */ |
| unsigned int round_adj_y; /**< Rounding Adjust for Y */ |
| unsigned int round_adj_u; /**< Rounding Adjust for U */ |
| unsigned int round_adj_v; /**< Rounding Adjust for V */ |
| unsigned int knee_y[TNR3_NUM_SEGMENTS - 1]; /**< Knee points */ |
| unsigned int sigma_y[TNR3_NUM_SEGMENTS + 1]; /**< Standard deviation for Y at points Y0, Y1, Y2, Y3 */ |
| unsigned int sigma_u[TNR3_NUM_SEGMENTS + 1]; /**< Standard deviation for U at points U0, U1, U2, U3 */ |
| unsigned int sigma_v[TNR3_NUM_SEGMENTS + 1]; /**< Standard deviation for V at points V0, V1, V2, V3 */ |
| unsigned int ref_buf_select; /**< Selection of the reference buffer */ |
| }; |
| |
| #endif |
| #endif |
