Image analysis method for determining pigment levels in fabric
US5751834A · kind A · utility
9Cited by
13References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1996 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Feb 7, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30124
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Image analysis method for determining pigment levels in fabric and yarn material. A sample fabric or yarn is illuminated by a source of visible light and a selected field area of the material is recorded then digitalized and stored in a video memory device. The digitalized field area is resolved into discrete segments or pixels having different intensity or gray level values. A frequency distribution in the form of a histogram of gray level values is plotted, and the resulting histogram is interpreted to determine pigment levels in the material sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.