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MathGroup Archive 2007

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Re: joint histogram of an three channels of an image

  • To: mathgroup at smc.vnet.net
  • Subject: [mg84028] Re: [mg83990] joint histogram of an three channels of an image
  • From: DrMajorBob <drmajorbob at bigfoot.com>
  • Date: Fri, 7 Dec 2007 03:03:48 -0500 (EST)
  • References: <30686131.1196929744288.JavaMail.root@m35>
  • Reply-to: drmajorbob at bigfoot.com

A joint histogram for 3 quantities would be 4-dimensional, would it not?  
We're not likely to see plots like THAT in the near future!

Taking the DensityPlot approach you'd shade different points within a 3D  
cube -- but how could one see interior points properly?

Bobby

On Thu, 06 Dec 2007 01:45:23 -0600, vicky Al Aisa <vickyisai at gmail.com>  
wrote:

> hello everyone.
>
> I wanted to know how can I draw the joint histogram between three
> different channels of an image  in mathematica.
>
> I have an image , and i want to plot the joint histogram between red,
> green and blue channels of the image.
> I know the underlying method of making the joint histogram between two
> differnt channels ...say red and green, but how can it be poltted for
> all three channels together....is it something like density plot??
>
> Thankyou
>
> vicky Al Aisa
>
>
>



-- 
DrMajorBob at bigfoot.com


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