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On 6 Sep 2014, at 17:01, Adrian Midgley <amidgley@xxxxxxxxx> wrote: > I see this chap had a look at a problem of similar nature > > http://blog.endpoint.com/2011/04/determining-dominant-image-color.html > > $ convert Waffle.jpg -scale 1x1\! -format '%[pixel:u]' info:- > rgb(219,166,94) > > That is aimed at giving a single dominant colour - which in the case > of a runner might be skyblue or grass green or track red. Excluding > those either from the picture that was passed to the notional > software, or the replies would probably work to a first approximation. > > http://www.imagemagick.org/Usage/quantize/ > > looks like a place to start... > > In my copious free time I shall apply myself a little to this. > your use case might be better served with this technique http://en.wikipedia.org/wiki/Vectorization_%28image_tracing%29 I’m thinking inkscapes vectorisation will cut the image into coloured vectors - I assume they will be layered in the file thus you can then bitmap the layers and do your colour identification. This should give you a list of colours in the image - all you then need to work out is the total of colour in the vector which should = probability. once you screen out the predominant background colour and tones. > > On 31 August 2014 21:03, Adrian Midgley <amidgley@xxxxxxxxx> wrote: >> Task: Automagically label or report a picture (JPEG) containing one >> runner in a blue shirt and one runner in a pink shirt as [pink, blue] >> >> Use case: making it easier for runners in parkruns to find their pictures. >> >> eg https://www.flickr.com/photos/midgley/sets/72157646973176126 >> >> >> >> Exists??? >> >> -- >> Adrian Midgley http://www.defoam.net/ > > > > -- > Adrian Midgley http://www.defoam.net/ > > -- > The Mailing List for the Devon & Cornwall LUG > http://mailman.dclug.org.uk/listinfo/list > FAQ: http://www.dcglug.org.uk/listfaq -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq