Re: surface plot of an image
- To: mathgroup at smc.vnet.net
- Subject: [mg70893] Re: surface plot of an image
- From: dh <dh at metrohm.ch>
- Date: Wed, 1 Nov 2006 03:55:00 -0500 (EST)
- References: <ei4mb2$e2t$1@smc.vnet.net>
Hi Ale,
hidden in your picture, there is an array of grey values. You may locate
it by using InputForm or FullForm. If you e.g. import a BMP file it has
the form: Raster[{array}_,___]. You would extract this by:
arr = Cases[g, Raster[x_, ___] -> x][[1]];
Having extracted the array arr you may e.g. use ListContourPlot to look
at it.
Daniel
alemarabi at gmail.com wrote:
> Hi,
>
> I have a microscopy image in gray levels and would like to convert it
> to a surface plot, in order to visualize the differences in grey values
> accros the picture.
> Is there an easy (or already) existing way to do that?
> Thank you in advance,
>
> Ale
>