Method of digital measuring color of fabrics based on digital camera
US11614362B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2022 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Jul 20, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30124
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of digital measuring the color of fabrics based on digital camera, includes: making plain fabric samples; obtaining ground-truth color of plain fabrics using a spectrophotometer; capturing a raw format digital image of the plain fabrics using the digital camera and extracting raw camera responses of the plain fabrics; capturing a raw format digital image of a target fabric and extracting the raw camera responses of a ROI in the target fabric; calculating a Euclidean distance and a similarity coefficient between the raw camera responses of the ROI in the target fabric and the plain fabrics; normalizing the Euclidean distance and the similarity coefficient; calculating a weighting coefficient of each color data of the plain fabrics based on the normalized Euclidean distance and similarity coefficient; weighting every color data of plain fabrics with a corresponding weighting coefficient; and summing the weighted color data of the plain fabrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.