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- /*
- By downloading, copying, installing or using the software you agree to this
- license. If you do not agree to this license, do not download, install,
- copy or use the software.
- License Agreement
- For Open Source Computer Vision Library
- (3-clause BSD License)
- Copyright (C) 2013, OpenCV Foundation, all rights reserved.
- Third party copyrights are property of their respective owners.
- Redistribution and use in source and binary forms, with or without modification,
- are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
- * Neither the names of the copyright holders nor the names of the contributors
- may be used to endorse or promote products derived from this software
- without specific prior written permission.
- This software is provided by the copyright holders and contributors "as is" and
- any express or implied warranties, including, but not limited to, the implied
- warranties of merchantability and fitness for a particular purpose are
- disclaimed. In no event shall copyright holders or contributors be liable for
- any direct, indirect, incidental, special, exemplary, or consequential damages
- (including, but not limited to, procurement of substitute goods or services;
- loss of use, data, or profits; or business interruption) however caused
- and on any theory of liability, whether in contract, strict liability,
- or tort (including negligence or otherwise) arising in any way out of
- the use of this software, even if advised of the possibility of such damage.
- */
- #ifndef __OPENCV_DICTIONARY_HPP__
- #define __OPENCV_DICTIONARY_HPP__
- #include <opencv2/core.hpp>
- namespace cv {
- namespace aruco {
- //! @addtogroup aruco
- //! @{
- /**
- * @brief Dictionary/Set of markers. It contains the inner codification
- *
- * bytesList contains the marker codewords where
- * - bytesList.rows is the dictionary size
- * - each marker is encoded using `nbytes = ceil(markerSize*markerSize/8.)`
- * - each row contains all 4 rotations of the marker, so its length is `4*nbytes`
- *
- * `bytesList.ptr(i)[k*nbytes + j]` is then the j-th byte of i-th marker, in its k-th rotation.
- */
- class CV_EXPORTS_W Dictionary {
- public:
- CV_PROP_RW Mat bytesList; // marker code information
- CV_PROP_RW int markerSize; // number of bits per dimension
- CV_PROP_RW int maxCorrectionBits; // maximum number of bits that can be corrected
- /**
- */
- Dictionary(const Mat &_bytesList = Mat(), int _markerSize = 0, int _maxcorr = 0);
- /**
- Dictionary(const Dictionary &_dictionary);
- */
- /**
- */
- Dictionary(const Ptr<Dictionary> &_dictionary);
- /**
- * @see generateCustomDictionary
- */
- CV_WRAP_AS(create) static Ptr<Dictionary> create(int nMarkers, int markerSize, int randomSeed=0);
- /**
- * @see generateCustomDictionary
- */
- CV_WRAP_AS(create_from) static Ptr<Dictionary> create(int nMarkers, int markerSize,
- const Ptr<Dictionary> &baseDictionary, int randomSeed=0);
- /**
- * @see getPredefinedDictionary
- */
- CV_WRAP static Ptr<Dictionary> get(int dict);
- /**
- * @brief Given a matrix of bits. Returns whether if marker is identified or not.
- * It returns by reference the correct id (if any) and the correct rotation
- */
- bool identify(const Mat &onlyBits, int &idx, int &rotation, double maxCorrectionRate) const;
- /**
- * @brief Returns the distance of the input bits to the specific id. If allRotations is true,
- * the four posible bits rotation are considered
- */
- int getDistanceToId(InputArray bits, int id, bool allRotations = true) const;
- /**
- * @brief Draw a canonical marker image
- */
- CV_WRAP void drawMarker(int id, int sidePixels, OutputArray _img, int borderBits = 1) const;
- /**
- * @brief Transform matrix of bits to list of bytes in the 4 rotations
- */
- CV_WRAP static Mat getByteListFromBits(const Mat &bits);
- /**
- * @brief Transform list of bytes to matrix of bits
- */
- CV_WRAP static Mat getBitsFromByteList(const Mat &byteList, int markerSize);
- };
- /**
- * @brief Predefined markers dictionaries/sets
- * Each dictionary indicates the number of bits and the number of markers contained
- * - DICT_ARUCO_ORIGINAL: standard ArUco Library Markers. 1024 markers, 5x5 bits, 0 minimum
- distance
- */
- enum PREDEFINED_DICTIONARY_NAME {
- DICT_4X4_50 = 0,
- DICT_4X4_100,
- DICT_4X4_250,
- DICT_4X4_1000,
- DICT_5X5_50,
- DICT_5X5_100,
- DICT_5X5_250,
- DICT_5X5_1000,
- DICT_6X6_50,
- DICT_6X6_100,
- DICT_6X6_250,
- DICT_6X6_1000,
- DICT_7X7_50,
- DICT_7X7_100,
- DICT_7X7_250,
- DICT_7X7_1000,
- DICT_ARUCO_ORIGINAL,
- DICT_APRILTAG_16h5, ///< 4x4 bits, minimum hamming distance between any two codes = 5, 30 codes
- DICT_APRILTAG_25h9, ///< 5x5 bits, minimum hamming distance between any two codes = 9, 35 codes
- DICT_APRILTAG_36h10, ///< 6x6 bits, minimum hamming distance between any two codes = 10, 2320 codes
- DICT_APRILTAG_36h11 ///< 6x6 bits, minimum hamming distance between any two codes = 11, 587 codes
- };
- /**
- * @brief Returns one of the predefined dictionaries defined in PREDEFINED_DICTIONARY_NAME
- */
- CV_EXPORTS Ptr<Dictionary> getPredefinedDictionary(PREDEFINED_DICTIONARY_NAME name);
- /**
- * @brief Returns one of the predefined dictionaries referenced by DICT_*.
- */
- CV_EXPORTS_W Ptr<Dictionary> getPredefinedDictionary(int dict);
- /**
- * @see generateCustomDictionary
- */
- CV_EXPORTS_AS(custom_dictionary) Ptr<Dictionary> generateCustomDictionary(
- int nMarkers,
- int markerSize,
- int randomSeed=0);
- /**
- * @brief Generates a new customizable marker dictionary
- *
- * @param nMarkers number of markers in the dictionary
- * @param markerSize number of bits per dimension of each markers
- * @param baseDictionary Include the markers in this dictionary at the beginning (optional)
- * @param randomSeed a user supplied seed for theRNG()
- *
- * This function creates a new dictionary composed by nMarkers markers and each markers composed
- * by markerSize x markerSize bits. If baseDictionary is provided, its markers are directly
- * included and the rest are generated based on them. If the size of baseDictionary is higher
- * than nMarkers, only the first nMarkers in baseDictionary are taken and no new marker is added.
- */
- CV_EXPORTS_AS(custom_dictionary_from) Ptr<Dictionary> generateCustomDictionary(
- int nMarkers,
- int markerSize,
- const Ptr<Dictionary> &baseDictionary,
- int randomSeed=0);
- //! @}
- }
- }
- #endif
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