On 15 May 2008, at 19:20, Fred Weinhaus wrote:
> It depends upon what you mean by predominant color.
>
> If the image is 24-bit color, then you have real trouble as there are
> millions of colors and finding a single predominant color is not easy.
>
> However, you can reduce the image down to a single pixel and get the
> color of that pixel. For example
>
> convert rose: -resize 1x1 miff:- | convert - -format
> "rgb(%[fx:int(255*u.p{0,0}.r)],%[fx:int(255*u.p{0,0}.g)],%
> [fx:int(255*u.p{0,0}.b)])"
> info:
>
>
>
> Or you may quantize the colors of the image to a reasonable number
> and then look at the histogram to find the most frequently used
> color. See -colors
that sounds like a plan.
I was hoping to be able to create a CSS color scheme based on colors
found in a company logo.
I realise there are many potential pitfalls, like background color may
be the most predominant, but I thought some preprocessing might
resolve that.
I think I have enough clues to get started down the proper path.
Thanks again all.
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