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Illumination Normalization of Face Image Based on Illuminant Direction Estimation and Improved Retinex
Illumination normalization of face image for face recognition and facial expression recognition is one of the most frequent and difficult problems in image processing. In order to obtain a face image with normal illumination, our method firstly divides the input face image into sixteen local regions...
| Autores principales: | , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Public Library of Science
2015
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4408076/ https://www.ncbi.nlm.nih.gov/pubmed/25906370 http://dx.doi.org/10.1371/journal.pone.0122200 |