| /* |
| * Copyright (C) 2015 - 2017 Intel Corporation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /*! |
| * \file ia_coordinate.h |
| * \brief Definitions of IA imaging coordinate system and conversion functions. |
| * |
| * IA Imaging algorithms use relative coordinate system where top left corner |
| * is (0,0) and bottom right corner is (8192,8192). |
| * |
| * Coordinate conversions can happen between arbitrary coordinate systems. |
| * |
| * Width and height of coordinate system must be > 0. |
| * |
| * Zoom factor is not considered in coordinate conversions but it should be |
| * calculated when defining the target coordinate system. |
| * |
| * For example: |
| * |
| * |-------------------------------------------| |
| * |(0,0) | |
| * | | |
| * | (1800,1700) | |
| * | |--------------| | |
| * | |(-100,-100) | | |
| * | | | | |
| * | | (100,100)| | |
| * | |--------------| | |
| * | (5500,4000) | |
| * | | |
| * | | |
| * | | |
| * | | |
| * | (8192,8192)| |
| * |-------------------------------------------| |
| * |
| * |
| * There is an algorithm which works on cropped area with own coordinate system A |
| * [(-100,100), (100.100)] inside another coordinate system B [(0,0), (8192,8192)]. |
| * |
| * To convert results from coordinate system A to B, one must define source and target |
| * coordinate systems: |
| * Source system is coordinate system A. |
| * src_system: [(-100,100), (100.100)] |
| * |
| * Target system defines the cropped rectangle from inside coordinate system B. |
| * trg_system: [(1800,1700), (5500,4000)] |
| * |
| */ |
| |
| |
| #ifndef IA_COORDINATE_H_ |
| #define IA_COORDINATE_H_ |
| |
| #include "ia_types.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /*! \brief Definitions of IA imaging coordinate system. */ |
| #define IA_COORDINATE_TOP 0 |
| #define IA_COORDINATE_LEFT 0 |
| #define IA_COORDINATE_BOTTOM 8192 |
| #define IA_COORDINATE_RIGHT 8192 |
| #define IA_COORDINATE_WIDTH (IA_COORDINATE_RIGHT-IA_COORDINATE_LEFT) |
| #define IA_COORDINATE_HEIGHT (IA_COORDINATE_BOTTOM-IA_COORDINATE_TOP) |
| |
| /*! |
| * \brief Coordinate system. |
| * Defines the coordinate space boundaries. |
| */ |
| typedef struct |
| { |
| long top; /*!< Top coordinate value in the coordinate system. */ |
| long left; /*!< Left coordinate value in the coordinate system. */ |
| long bottom; /*!< Bottom coordinate value in the coordinate system. */ |
| long right; /*!< Right coordinate value in the coordinate system. */ |
| } ia_coordinate_system; |
| |
| /*! |
| * \brief Convert coordinate from source coordinate space to target coordinate space. |
| * \param[in] src_system Source coordinate system boundaries. |
| * \param[in] trg_system Target coordinate system boundaries. |
| * \param[in] src_coordinate Coordinate values in source coordinate system. |
| * \return Target coordinate converted from source coordinate. |
| */ |
| LIBEXPORT ia_coordinate |
| ia_coordinate_convert( |
| const ia_coordinate_system *src_system, |
| const ia_coordinate_system *trg_system, |
| const ia_coordinate src_coordinate); |
| |
| /*! |
| * Converts a rectangle from one coordinate system to another. |
| * |
| * \param [in] a_src_system_ptr The source coordinate system. |
| * \param [in] a_src_rect_ptr The source rectangle. |
| * \param [in] a_tgt_system_ptr The target coordinate system. |
| * \param [out] a_tgt_rect_ptr The calculated target rectangle. |
| */ |
| LIBEXPORT void |
| ia_coordinate_convert_rect( |
| const ia_coordinate_system* a_src_system_ptr, |
| const ia_rectangle* a_src_rect_ptr, |
| const ia_coordinate_system* a_tgt_system_ptr, |
| ia_rectangle* a_tgt_rect_ptr); |
| |
| /*! |
| * \brief Convert face coordinates to target coordinate system. |
| * \param[in,out] face_state Structure containing face information from face tracker. |
| * \param[in] src_system Source coordinate system boundaries. |
| * \param[in] trg_system Target coordinate system boundaries. |
| */ |
| LIBEXPORT void |
| ia_coordinate_convert_faces( |
| const ia_coordinate_system *src_system, |
| const ia_coordinate_system *trg_system); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| |
| #endif /* IA_COORDINATE_H_ */ |
| |