Integrated digital photography and image processing for the quantification of colouration on soiled limestone surfaces in Oxford, England
M Thornbush, H Viles - Journal of Cultural Heritage, 2004 - Elsevier
In studies of building stone soiling and decay, as well as in other areas of building research,
there is a need for an inexpensive and reliable method of assessing colour across surface
areas. An integrated digital photography and image processing (IDIP) method has recently
been developed and is presented here. This method enables cheap and reproducible
measurements of lightness and chroma, using the L* a* b scheme, across a range of sample
sizes. Of notable advantage is its allowance for areal rather than point sampling of surfaces …
there is a need for an inexpensive and reliable method of assessing colour across surface
areas. An integrated digital photography and image processing (IDIP) method has recently
been developed and is presented here. This method enables cheap and reproducible
measurements of lightness and chroma, using the L* a* b scheme, across a range of sample
sizes. Of notable advantage is its allowance for areal rather than point sampling of surfaces …
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