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Effect of Illuminant Changes on Spectral Image Queries

机译:光源变化对光谱图像查询的影响

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摘要

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, D_(65), 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.
机译:在这项研究中,检查了对颜色恒定性的需求以及光源变化对光谱图像查询输出的影响。在五个光谱图像数据库中执行查询,这些数据库的内容相似但光照条件不同。使用的数据库之一由反射图像组成,而其他数据库的图像则在国际照明委员会光源A,D_(65),F8和F11下。在执行的查询中利用颜色和纹理特征,并通过计算输出之间的汉明距离和交点数来评估两个查询输出的相似性。结果表明正确照明条件的重要性,颜色恒定性的需求以及在光源变化下局部基于二进制图案的纹理特征的鲁棒性。

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