Re: heat map

Posted by Szilvi Mezey on
URL: http://imagej.273.s1.nabble.com/heat-map-tp3690310p3690313.html

Gabriel,

thank you very much, it works a treat! I've also found an LUT called
"thermal" which does the job perfectly.

Szilvi

2009/11/26 Gabriel Landini <[hidden email]>

> On Thursday 26 November 2009  13:46:07 Szilvia Mezey wrote:
> > I've been tangled up in a problem with ImageJ and hope to find somebody
> who
> > can help...
> >
> > I'm trying to turn a thresholded image into a heat map, where different
> > colours indicate the density of black pixels in a given area. More
> labelling
> > would be red, changing to green and then blue in areas with less
> labelling
> > and white is no label at all. Is there any way of doing this in ImageJ?
> > Can't find any macros or plugins (not even any kind of free software),
> even
> > though I'm sure I'm not the first to tackle this problem.
>
> Run a mean filter of size of your local region.
> Apply some LUT such as "fire"
> The colour will vary depending on the mean value of the set pixels in a
> region
> given by the filter kernel size centred at that location.
>
> Cheers
>
> G.
>
>