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- Title
Color measurement of single yarn based on hyperspectral imaging system.
- Authors
Zhang, Jianxin; Wu, Junkai; Zhang, Xinen; Hu, Xudong
- Abstract
This article proposed a novel approach to color measurement of a single yarn using hyperspectral imaging system (HIS). Due to the size of a single yarn, it is impossible for spectrophotometers to measure its color directly. The HIS can acquire the spectral reflectance of continuous bands within a region of interest on a yarn sample, which can achieve color measurement of a single yarn compared with traditional spectrophotometers. A single yarn is segmented from the background by a spectral matching method through adaptively setting threshold of Fréchet distance values. The spectral reflectance of single yarn is specified by a method that lightness of pixels used as weight. The experiment based on Pantone Cotton Chip Set shows that the interinstrument agreement between the HIS and a standard spectrophotometer Datacolor SF650 has a significant improvement after using the R‐Model, and the average percentage improvement of the color difference is up to 54.99%. The yarn segmentation comparative experimental results show that the proposed method to segment single yarn from background is better in retaining the edge information of the yarn than the modified K‐means clustering method, and the color of the yarn segmented by the proposed method is more similar to the actual color of single yarn.
- Subjects
HYPERSPECTRAL imaging systems; COLORIMETRY; SPECTROPHOTOMETERS; YARN; SPECTRAL reflectance; K-means clustering
- Publication
Color Research & Application, 2020, Vol 45, Issue 3, p485
- ISSN
0361-2317
- Publication type
Article
- DOI
10.1002/col.22476