Re: Create LUT

Posted by Herbie on
URL: http://imagej.273.s1.nabble.com/Create-LUT-tp5017497p5017504.html

Good day Iris,

meanwhile you've cross-posted to the forum for help but what about the
suggestion of Michael Schmid?

Here is a solution to

"For example:
Red = 100-150
Yellow = 50-100
Green =0-50"

with the suggested macro-approach:

//////////////////////////////////////
red = newArray(256);
green = newArray(256);
blue = newArray(256);
for (i=50; i<150; i++) {
        red[i] = 255;
}
for (i=0; i<100; i++) {
        green[i] = 255;
}
for (i=0; i<256; i++) {
        blue[i ]=0;
}
setLut(red, green, blue);
//////////////////////////////////////

Many examples are provided here:
<https://imagej.nih.gov/ij/macros/LookupTables.txt>

HTH

Herbie

::::::::::::::::::::::::::::::::::::::

Good day Iris,

it's always a good idea to consult the ImageJ user guide.
In this case I recommend "LUT Editor":
<https://imagej.nih.gov/ij/docs/guide/146-28.html#toc-Subsection-28.5>

Perhaps you start with opening an existing LUT and modifying it
according to your needs.

HTH

Herbie

::::::::::::::::::::::::::::::::::::::
Am 28.10.16 um 16:00 schrieb Ihiertje:

> Hi,
>
> I have a question about creating my own LUT.
> For my code I would like to create my own LUT with about 3 colours for which
> I can define the values.
> So for example:
> red --> 0-10
> orange -->10-20
> Green -->20-30
>
> However I can't find a way in image J to create this LUT. It is possible to
> select the colors, but not to give them specific values. Is it possible to
> make such a LUT in imagej or is there another way to do the same thing?
>
> Thanks!
>
> Iris
>
>
>
>
>
> --
> View this message in context: http://imagej.1557.x6.nabble.com/Create-LUT-tp5017497.html
> Sent from the ImageJ mailing list archive at Nabble.com.
>
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> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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