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Re: [ANN] Linked Open Colors

From: Christopher Gutteridge <cjg@ecs.soton.ac.uk>
Date: Fri, 01 Apr 2011 10:29:52 +0100
Message-ID: <EMEW3|8dd283168658b402eeb55e39fb7453f6n30AYv03cjg|ecs.soton.ac.uk|4D959B10.40405@ecs.soton.ac.uk>
To: Richard Cyganiak <richard@cyganiak.de>
CC: John Goodwin <John.Goodwin@ordnancesurvey.co.uk>, Sergio Fernández <sergio.fernandez@fundacionctic.org>, Linked Data community <public-lod@w3.org>
Suggested future work:
* Relate each colour to a brightness, hue and saturation URI. Maybe also 
link to RDF documents for the combinations of b+h, n+s and h+s so people 
can see variants of saturation, brightness and hue.
* Link to the complimentary colour (inverse)
* Link to the harmonious colours
* Link to the nearest 'web safe' colour.
* Give all colours a label, even if it's just the label for the nearest 
web safe color. If 
http://linkedopencolors.appspot.com/color/rgb/85a3ce.rdf said 'light 
blue' somewhere it would have far more utility.
* Define some useful predicates; for example to relate an image to the 
major colour(s) used within it.
* provide a .png as well as .rdf and .html so people can link to a 
swatch of the colour.
* provide a recommended way to indicate transparency (which is possibly 
separate from colour?) Perhaps also other properties like reflectivity etc.

Anyhow, I've knocked up a quick image-to-RDF service;  

Example output: http://is.gd/3h0Ais

I've limited it to 10K pixels for now. Code available on request.

Richard Cyganiak wrote:
> On 1 Apr 2011, at 13:32, John Goodwin wrote:
>> Thank you for this - very useful. Also very timely as OS are about to release all raster mapping products in RDF. 
> That's about time! I want to use SPARQL CONSTRUCT for image processing.
> Best,
> Richard
>> John
>> -----Original Message-----
>> From: public-lod-request@w3.org on behalf of Sergio Fernández
>> Sent: Fri 4/1/2011 08:45
>> To: Linked Data community
>> Subject: [ANN] Linked Open Colors
>> Hi,
>> for giving some color to the semantic web folks, we are happy to
>> announce the release the "Linked Open Colors" dataset [1]. The Linked
>> Open Colors project offers tons of facts about colors, all readily
>> available as Linked Open Data, linking with other relevant datasets
>> such as dbpedia.
>> The dataset and its publication mechanisms have been pedantically
>> checked, and we expect no errors in the triples; if you do find some,
>> please let us know.
>> This project is highly inspired by Linked Open Numbers project [2].
>> Happy April Fools' Day!
>> Cheers,
>> [1] http://purl.org/colors
>> [2] http://km.aifb.kit.edu/projects/numbers/
>> -- 
>> Carlos Tejo, Iván Mínguez and Sergio Fernández
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Christopher Gutteridge -- http://id.ecs.soton.ac.uk/person/1248

You should read the ECS Web Team blog: http://blogs.ecs.soton.ac.uk/webteam/
Received on Friday, 1 April 2011 09:30:35 UTC

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