Re: joint histogram of an three channels of an image
- To: mathgroup at smc.vnet.net
- Subject: [mg84006] Re: joint histogram of an three channels of an image
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Thu, 6 Dec 2007 07:20:47 -0500 (EST)
- Organization: Uni Leipzig
- References: <fj89tn$ace$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi, there is no function for that -- you can plot the 3d points corresponding to the colors, i.e. img = Import["http://blog.wolfram.com/images/people/sw.jpg";] Graphics3D[ Map[{RGBColor @@ (#/255), Point[#]} &, img[[1, 1]], {2}] ] Regards Jens vicky Al Aisa 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 > >
![http://blog.wolfram.com/images/people/sw.jpg"](http://blog.wolfram.com/images/people/sw.jpg"){kind=link}