Re: Color LUT question

Posted by Gabriel Landini on Aug 19, 2006; 10:13am
URL: http://imagej.273.s1.nabble.com/Color-LUT-question-tp3701748p3701753.html

On 8/18/06, Heiko Gleitsmann <[hidden email]> wrote:
> Hi all,
>
> is it possible to add opacity information via LUT in ImageJ. I need
> something to create a Color LUT with specified opacity.

No, you cannot create a semi-transparent LUT.
But I wonder if this would help:
You can convert a greyscale image RGB and then to HSB and play with the
Saturation channel. If you apply the (artificial) colours to the Hue channel,
then the saturation will give you the effect you want (keep the Brightness
channel untouched).

I hope it helps.

Gabriel