Re: invert black and white values

Posted by Jean-Philippe Grossier on Apr 28, 2013; 10:53am
URL: http://imagej.273.s1.nabble.com/invert-black-and-white-values-tp5002832p5002834.html

Hi,

you can do: edit>invert. all previous black values are now 255 and white.
you can then invert the display color in image>lookup table>invert lut to
change white to black without changing the values.

jp


2013/4/28 Abi <[hidden email]>

> Hi,
> I've only just downloaded image J and this is probably a really silly
> question, sorry!
> I'm trying to set the threshold for an image, a black image on a white
> background.  I want the black values to have a count of 255 and the white
> of
> 0, but it's coming up the other way round.  When I use the computer at work
> it comes up the way I want it.
> Can anyone tell me what I'm doing wrong please?
> Thanks
> A
>
>
>
> --
> View this message in context:
> http://imagej.1557.x6.nabble.com/invert-black-and-white-values-tp5002832.html
> Sent from the ImageJ mailing list archive at Nabble.com.
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html