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Re: needs the option ColorFunction, any good workaround?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg131500] Re: needs the option ColorFunction, any good workaround?
  • From: Matthias Odisio <matthias at wolfram.com>
  • Date: Tue, 13 Aug 2013 03:58:36 -0400 (EDT)
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Sibir,

On 8/10/13 3:39 AM, sibir wrote:
> ArrayPlot and also Image3D have an option ColorFunction. For Image there is no such option, for scalar data "GrayScale" is all there is.
> 
> Now one can ImageApply Hue like
> 
> ImageApply[List @@ ToColor[Hue[#], RGBColor]&, Image[data]]
> 
> but how to use other Gradient Color Schemes like "Rainbow" or "TemperatureMap"?
> 
> I am working with large dataset, so ArrayPlot is not an option (too slow and memory inefficient).

Have you tried ImageRelief and Colorize?


Matthias Odisio




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