Path: blob/master/modules/features2d/src/agast_score.hpp
16337 views
/* This is AGAST and OAST, an optimal and accelerated corner detector1based on the accelerated segment tests2Below is the original copyright and the references */34/*5Copyright (C) 2010 Elmar Mair6All rights reserved.78Redistribution and use in source and binary forms, with or without9modification, are permitted provided that the following conditions10are met:1112*Redistributions of source code must retain the above copyright13notice, this list of conditions and the following disclaimer.1415*Redistributions in binary form must reproduce the above copyright16notice, this list of conditions and the following disclaimer in the17documentation and/or other materials provided with the distribution.1819*Neither the name of the University of Cambridge nor the names of20its contributors may be used to endorse or promote products derived21from this software without specific prior written permission.2223THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS24"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT25LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR26A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR27CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,28EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,29PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR30PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF31LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING32NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS33SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.34*/3536/*37The references are:38* Adaptive and Generic Corner Detection Based on the Accelerated Segment Test,39Elmar Mair and Gregory D. Hager and Darius Burschka40and Michael Suppa and Gerhard Hirzinger ECCV 201041URL: http://www6.in.tum.de/Main/ResearchAgast42*/434445#ifndef __OPENCV_FEATURES_2D_AGAST_HPP__46#define __OPENCV_FEATURES_2D_AGAST_HPP__4748#ifdef __cplusplus4950#include "precomp.hpp"51namespace cv52{5354#if !(defined __i386__ || defined(_M_IX86) || defined __x86_64__ || defined(_M_X64))55int agast_tree_search(const uint32_t table_struct32[], int pixel_[], const unsigned char* const ptr, int threshold);56int AGAST_ALL_SCORE(const uchar* ptr, const int pixel[], int threshold, AgastFeatureDetector::DetectorType agasttype);57#endif //!(defined __i386__ || defined(_M_IX86) || defined __x86_64__ || defined(_M_X64))585960void makeAgastOffsets(int pixel[16], int row_stride, AgastFeatureDetector::DetectorType type);6162template<AgastFeatureDetector::DetectorType type>63int agast_cornerScore(const uchar* ptr, const int pixel[], int threshold);646566}67#endif68#endif697071