{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/revisiting-gray-pixel-for-statistical","title":"Revisiting Gray Pixel for Statistical Illumination Estimation","arxiv_id":"1803.08326","date":"2018-03-22","proceeding":null,"authors":["Yanlin Qian","Said Pertuz","Jarno Nikkanen","Joni-Kristian Kämäräinen","Jiri Matas"],"abstract":"We present a statistical color constancy method that relies on novel gray\npixel detection and mean shift clustering. The method, called Mean Shifted Grey\nPixel -- MSGP, is based on the observation: true-gray pixels are aligned\ntowards one single direction. Our solution is compact, easy to compute and\nrequires no training. Experiments on two real-world benchmarks show that the\nproposed approach outperforms state-of-the-art methods in the camera-agnostic\nscenario. In the setting where the camera is known, MSGP outperforms all\nstatistical methods.","url_abs":"http://arxiv.org/abs/1803.08326v4","url_pdf":"http://arxiv.org/pdf/1803.08326v4.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"abstracts"},"code_links":[{"paper_slug":"revisiting-gray-pixel-for-statistical","repo_url":"https://github.com/yanlinqian/Mean-shifted-Gray-Pixel","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[{"task_slug":"clustering","task_name":"Clustering"},{"task_slug":"color-constancy","task_name":"Color Constancy"}],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":"https://app.syntology.ai/?focus=1803.08326","mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}