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  2. DBSCAN - Wikipedia

    en.wikipedia.org/wiki/DBSCAN

    DBSCAN* [6] [7] is a variation that treats border points as noise, and this way achieves a fully deterministic result as well as a more consistent statistical interpretation of density-connected components. The quality of DBSCAN depends on the distance measure used in the function regionQuery(P,ε).

  3. OPTICS algorithm - Wikipedia

    en.wikipedia.org/wiki/OPTICS_algorithm

    The R package "dbscan" includes a C++ implementation of OPTICS (with both traditional dbscan-like and ξ cluster extraction) using a k-d tree for index acceleration for Euclidean distance only. Python implementations of OPTICS are available in the PyClustering library and in scikit-learn .

  4. File:DBSCAN-density-data.svg - Wikipedia

    en.wikipedia.org/wiki/File:DBSCAN-density-data.svg

    Date/Time Thumbnail Dimensions User Comment; current: 12:01, 19 December 2020: 320 × 322 (77 KB): Chire: New version with core, border and noise. 13:57, 20 February 2012

  5. List of datasets in computer vision and image processing

    en.wikipedia.org/wiki/List_of_datasets_in...

    213 images of 7 facial expressions (6 basic facial expressions + 1 neutral) posed by 10 Japanese female models. Images are cropped to the facial region. Includes semantic ratings data on emotion labels. 213 Images, text Facial expression cognition 1998 [97] [98] Lyons, Kamachi, Gyoba FaceScrub Images of public figures scrubbed from image searching.

  6. List of CBIR engines - Wikipedia

    en.wikipedia.org/wiki/List_of_CBIR_engines

    Visual Image Retrieval and Localization: A visual search engine that, given a query image, retrieves photos depicting the same object or scene under varying viewpoint or lighting conditions. Using Flickr photos of urban scenes, it automatically estimates where a picture is taken, suggests tags, identifies known landmarks or points of interest ...

  7. File:DBSCAN-Gaussian-data.svg - Wikipedia

    en.wikipedia.org/wiki/File:DBSCAN-Gaussian-data.svg

    English: Cluster analysis with DBSCAN on a gaussian-distributed-based data set. Even with carefully chosen parameters minPts and ε {\displaystyle \varepsilon } , DBSCAN is unable to capture all clusters correctly at the same time, since the difference in density is too high and the separation too low.

  8. File:DBSCAN-Illustration.svg - Wikipedia

    en.wikipedia.org/wiki/File:DBSCAN-Illustration.svg

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  9. List of image-sharing websites - Wikipedia

    en.wikipedia.org/wiki/List_of_image-sharing_websites

    All old user photos from accounts not migrated to Shutterfly were deleted. Webshots still operates in other fields, and is owned by Threefold Photos. 32,000,000 [36] One 800×600 image per day Pixorial: United States Personal photo and video sharing platform. Registration required. Free subscription available. July 18, 2014: No new accounts ...