Paper
27 June 2023 Study of spectral reflectance recovery based on color constancy
Author Affiliations +
Proceedings Volume 12705, Fourteenth International Conference on Graphics and Image Processing (ICGIP 2022); 127052X (2023) https://doi.org/10.1117/12.2680017
Event: Fourteenth International Conference on Graphics and Image Processing (ICGIP 2022), 2022, Nanjing, China
Abstract
A procedure for spectral recovery method based on color constancy is proposed from camera response values. The proposed method standardizes camera response values under different light sources by using different color constancy algorithms, and applied the pseudo inverse operation with the camera responses expansion to achieve the spectral reflectance recovery. To reduce the influence of external light source, the crossover combination of light sources and color constancy algorithms are calculated to determine the optimal selection of processing. The effectiveness of the color constancy algorithm was verified by using the spectral accuracy comparison and image similarity. The experimental results show that color constancy can significantly improve the spectral recovery accuracy, and the grey edge has the best performance.
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Yuheng Wu, Guangyuan Wu, and Chuanyang Zang "Study of spectral reflectance recovery based on color constancy", Proc. SPIE 12705, Fourteenth International Conference on Graphics and Image Processing (ICGIP 2022), 127052X (27 June 2023); https://doi.org/10.1117/12.2680017
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KEYWORDS
Light sources

Reflectivity

Color

Matrices

RGB color model

Education and training

Image restoration

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