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Re: working with colours [message #37652 is a reply to message #37651]

Tue, 13 January 2004 06:49

maarten
Messages: 30
Registered: April 2002

Member

Pepijn Kenter wrote:
>
>
> maarten wrote:
>
>> Hello,
>>
>> I have a problem with working with colours. I have two datasets that
>> will be layed on eachother. One of the datasets will be displayed in
>> greyvalues, the other will have to be displayed in a blue-red
>> activation colourscheme, transparancy isn't needed. I tried to divide
>> the colourspace in two separate parts using the bytscl command.
>
>
> It's possible that I misunderstand your problem or that you allready
> thought of the following solution, but it seems to me that you can map
> the first parameter to the Value, and the second parameter to the Hue in
> the HSV (or HSL) color coordinate system. You can use the color_convert
> routine from IDL to convert this HSV color to an RGB value, and then
> display the result as normal.
>
> HTH, Pepijn.
>

I checked the number of colors in IDL, but this is only 256. is it
possible to make this number higher and would this solve the problem?
regards maarten

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[Message index]

		Re: working with colours By: maarten on Tue, 13 January 2004 08:46
		Re: working with colours By: Liam Gumley on Tue, 13 January 2004 08:14
		Re: working with colours By: David Fanning on Tue, 13 January 2004 07:05
		Re: working with colours By: maarten on Tue, 13 January 2004 06:49
		Re: working with colours By: Pepijn Kenter on Tue, 13 January 2004 06:29
		Re: working with colours By: David Fanning on Tue, 13 January 2004 05:57

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