A Method for Color Calibration Based on Simulated Annealing Optimization

Haifeng Yu, T. Cao, Bo Li, Rong Dong, Huiyu Zhou
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引用次数: 4

Abstract

To accurately reproduce colors, it is necessary to calibrate a digital camera that is used to acquire images. The traditional calibration methods have been used to build a color correction model that has a transformation matrix mapping data from a RGB image to standard XYZ tristimulus. Determination of this matrix is performed through matrix transformation from each color checker patch to its corresponding actual XYZ value, using least-squares regression. However, these methods cannot effectively minimize the CIE DE error because of these algorithms' limitations and CCD dark currents, which can be hard to accurately measure. In this paper, a new color correction model is presented for color calibration and helps minimize the CIEDE2000 error in order to achieve higher color fidelity. Experimental results show that our method significantly outperforms other algorithms.
一种基于模拟退火优化的颜色校正方法
为了准确地再现色彩,有必要校准用于获取图像的数码相机。传统的校准方法已经被用来建立一个色彩校正模型,该模型具有从RGB图像到标准XYZ三刺激的变换矩阵映射数据。该矩阵的确定是通过使用最小二乘回归从每个颜色检查器补丁到其相应的实际XYZ值的矩阵变换来执行的。然而,由于这些算法的局限性和CCD暗电流难以准确测量,这些方法不能有效地减小CIE DE误差。本文提出了一种新的色彩校正模型,用于色彩校准,并有助于最小化CIEDE2000误差,以获得更高的色彩保真度。实验结果表明,该方法明显优于其他算法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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