| EPSRC Reference: |
GR/L25783/01 |
| Title: |
STUDIES IN METAMERISM AND COLOUR CONSTANCY USING DICHROIC LADDERS |
| Principal Investigator: |
Wardman, Dr RH |
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| Department: |
Textiles |
| Organisation: |
Heriot-Watt Uni, Scottish Borders Campus |
| Scheme: |
JREI |
| Starts: |
01 February 1997 |
Ends: |
31 January 2000 |
Value (£): |
20,704
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Summary on Grant Application Form |
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Dichroic ladders comprise a series of textile samples, varying in colour slightly from one to the other, dyed with metal complex dyes so they are reasonably colour constant. A sample called a 'floater' is prepared with acid levelling dyes which are less colour constant and is dyed such that it will match one of the samples of the ladder under a given light source (not necessarily the same sample for all light sources). Initial experiments have indicated that the sample from the ladder selected visually as a match to the floater does not agree with that predicted instrumentally on the basis of colour-difference calculation. It is intended to extend this work by preparing many more ladders and a number of floaters for each ladder will be prepared. The relationship between visual and instrumentally selected matching samples will be investigated, and correction algorithms established to improve the correlation.
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Key Findings |
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Potential use in non-academic contexts |
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Impacts |
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| Description |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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