低成本便携式光谱仪对RAL设计系统加上颜色校准目标的色度准确性的比较分析
Jaša Samec1, Eva Štruc2, Inese Berzina3
1Vets4science d.o.o., 2 Kukovčeva Str., SI-3000 Celje, Slovenia.
Sensors (Basel, Switzerland)
|January 8, 2025
概括
低成本的便携式光谱仪提供了准确的色度测量,与传统设备相竞争. 这些负担得起的工具为科学和工业应用提供可靠的颜色匹配.
科学领域:
- 颜色科学 颜色科学
- 计量学 计量学 计量学
- 仪器化 仪器化 仪器化
背景情况:
- 传统的光谱仪和校准的RGB摄像机用于色度测量.
- 新型低成本便携式光谱仪提供了一个潜在的更容易获得的替代方案.
- 评估这些新设备的色度准确性对于它们的采用至关重要.
研究的目的:
- 为了评估价格低廉的便携式光谱仪的色度准确性.
- 为了比较它们的性能与既定的色彩校准目标和RGB摄像机.
- 确定它们在科学和工业环境中作为替代品的适用性.
主要方法:
- 测试了四个低成本光谱仪 (Nix Spectro 2,Spectro 1 Pro,ColorReader,Pico) 和一个智能手机RGB相机.
- 使用RAL设计系统Plus (RAL+) 颜色校准目标,使用了183种颜色.
- 在CIELAB彩色空间中使用CIEDE2000 (ΔE) 度量测量颜色差异.
主要成果:
- 尼克斯 Spectro 2 显示了最高的性能,匹配了 99% 的 RAL+ 颜色, ΔE 值为 0.5-1.05.05.
- 斯佩克托1 Pro和ColorReader的颜色匹配率约为85%的颜色 (ΔE:1.07-1.39).
- 皮科和智能手机相机的精度较低,匹配54-77%的颜色 (ΔE: ~1.85).
结论:
- 低成本的便携式光谱仪提供了出色的色度测量能力.
- 这些设备在颜色准确性方面通常优于基于RGB相机的系统.
- 它们代表了科学和工业中颜色分析的有价值,具有成本效益的工具.
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