8000 objdetect: added ColorNames features by mshabunin · Pull Request #27381 · opencv/opencv · GitHub
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objdetect: added ColorNames features #27381

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objdetect: added ColorNames features #27381

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@mshabunin mshabunin commented May 29, 2025 •
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WIP

TODO:

@inproceedings{van2007applying,
  title={Applying color names to image description},
  author={Van de Weijer, Joost and Schmid, Cordelia},
  booktitle={2007 IEEE International Conference on Image Processing},
  volume={3},
  pages={III--493},
  year={2007},
  organization={IEEE}
}

@article{van2009learning,
  title={Learning color names for real-world applications},
  author={Van De Weijer, Joost and Schmid, Cordelia and Verbeek, Jakob and Larlus, Diane},
  journal={IEEE Transactions on Image Processing},
  volume={18},
  number={7},
  pages={1512--1523},
  year={2009},
  publisher={IEEE}
}

@inproceedings{danelljan2014adaptive,
  title={Adaptive color attributes for real-time visual tracking},
  author={Danelljan, Martin and Shahbaz Khan, Fahad and Felsberg, Michael and Van de Weijer, Joost},
  booktitle={Proceedings of the IEEE conference on computer vision and pattern recognition},
  pages={1090--1097},
  year={2014}
}

@mshabunin mshabunin mentioned this pull request May 30, 2025
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asmorkalov
asmorkalov reviewed Jun 17, 2025
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modules/objdetect/include/opencv2/objdetect.hpp
typedef Vec<float, 10> FeatureType;
virtual ~ColorNamesFeatures() {}
CV_WRAP virtual void compute(InputArray image_patch, OutputArray feature_vector) = 0;
static Ptr<ColorNamesFeatures> create(const std::string & table_file);
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I propose to add create with in-memory table. It's needed on iOS, Android and some other platforms.

modules/objdetect/include/opencv2/objdetect.hpp
Comment on lines +710 to +711
typedef Vec<uchar, 3> PixType;
typedef Vec<float, 10> FeatureType;
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Why do you need it in public API?

@asmorkalov asmorkalov added this to the 4.13.0 milestone Jun 20, 2025
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