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Effect of Illuminant Changes on Spectral Image Queries

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The need for color constancy and the effect of illuminant changes on the outputs of spectral image queries are examined in this study. The queries are performed in five spectral image databases which are similar in content but different in lighting condition. One of the used databases consists of reflectance images whereas the images of the other databases are under the International Commission on Illumination illuminants A, D65, F8 and F11. Color and texture features are utilized in the performed queries and the similarity of two query outputs is evaluated by calculating the Hamming distance and intersection number between the outputs. The results indicate the importance of the correct lighting condition, the need of color constancy, and the robustness of the local binary pattern-based texture features under illuminant changes.
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Document Type: Research Article

Affiliations: 1: Department of Computer Science and Statistics, University of Joensuu, 80101 Joensuu, Finland 2: Department of Physics and Mathematics, University of Joensuu, 80101 Joensuu, Finland

Publication date: 2008-03-01

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  • The Journal of Imaging Science and Technology (JIST) is dedicated to the advancement of imaging science knowledge, the practical applications of such knowledge, and how imaging science relates to other fields of study. The pages of this journal are open to reports of new theoretical or experimental results, and to comprehensive reviews. Only original manuscripts that have not been previously published, nor currently submitted for publication elsewhere, should be submitted.

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    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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