apply custom LUT

[Jirka]

Good morning,
maybe it will sound as really stupid question but I couldn t found how to
do it.
I have 8-bit image and I want change some colours manually, so I used
Image>Colour>Edit LUT...
http://rsbweb.nih.gov/ij/plugins/lut-editor.html
I changed the colours by my  will but when I save the image the colours are
same as on the beginning.
Do you have any advice what to do to save the changed image?

Thanks
--
Best regards and wishes of a pleasant day, Jiří Borovec
-----------------------------------------------------------------------------------------------------
Jiří Borovec <[e-mail]>
PhD student at CMP CTU, ISC member
http://cmp.felk.cvut.cz/~borovji3

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

[Lenka Polaskova]

Hello Jiří,
maybe you need to save this changed LUT and add it to your imagej folder.
Then you can load a saved image with the same colours.

Best regards

Lenka

2012/9/19 Jiří Borovec <[hidden email]>

> Good morning,
> maybe it will sound as really stupid question but I couldn t found how to
> do it.
> I have 8-bit image and I want change some colours manually, so I used
> Image>Colour>Edit LUT...
> http://rsbweb.nih.gov/ij/plugins/lut-editor.html
> I changed the colours by my  will but when I save the image the colours are
> same as on the beginning.
> Do you have any advice what to do to save the changed image?
>
> Thanks
> --
> Best regards and wishes of a pleasant day, Jiří Borovec
>

>
> -----------------------------------------------------------------------------------------------------
> Jiří Borovec                                                <
> [hidden email]>
> PhD student at CMP, ISC member, CTU           tel.: [phone]
> http://cmp.felk.cvut.cz/~borovji3                    mobile: +420
> 728480285
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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[Arne Seitz]

Hi,

by applying a LookUpTable (LUT) to your image you only change the display mapping (=how it is displayed on the screen). The values of the pixels remain unchanged. Therefore the colour(s) are not preserved if you save your image. In order to get "permanent" colours you need to change the format of your image (Image-->Type-->) to "8-bit colour" or "RGB" before saving.

Cheers Arne


---------------------------------------------------------------
Arne Seitz
Head of Bioimaging and Optics Platform (PT-BIOP)
Ecole Polytechnique Fédérale de Lausanne (EPFL)
Faculty of Life Sciences
Station 15, AI 0241
CH-1015 Lausanne

Phone: [phone]
Fax:      [phone]
http://biop.epfl.ch/
---------------------------------------------------------------

 

> -----Original Message-----
> From: ImageJ Interest Group [mailto:[hidden email]] On Behalf Of
> Jirí Borovec
> Sent: mercredi 19 septembre 2012 12:22
> To: [hidden email]
> Subject: apply custom LUT
>
> Good morning,
> maybe it will sound as really stupid question but I couldn t found how to do it.
> I have 8-bit image and I want change some colours manually, so I used
> Image>Colour>Edit LUT...
> http://rsbweb.nih.gov/ij/plugins/lut-editor.html
> I changed the colours by my  will but when I save the image the colours are
> same as on the beginning.
> Do you have any advice what to do to save the changed image?
>
> Thanks
> --
> Best regards and wishes of a pleasant day, Jiří Borovec
> ----------------------------------------------------------------------------------------------
> -------
> Jiří Borovec                                                <
> [hidden email]>
> PhD student at CMP, ISC member, CTU           tel.: [phone]
> http://cmp.felk.cvut.cz/~borovji3                    mobile: [phone]
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html

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

[Jirka]

Hello,
I had the input (original) image as 8-bit image, I assigned grey-scale
colour by LUT and the saved image was also 8-bit only so I should change it
to RGB image?

Thanks
--
Best regards and wishes of a pleasant day, Jiří Borovec
-----------------------------------------------------------------------------------------------------
Jiří Borovec <[e-mail]>
PhD student at CMP CTU, ISC member
http://cmp.felk.cvut.cz/~borovji3


On 19 September 2012 15:14, Seitz Arne <[e-mail]> wrote:

> Hi,
>
> by applying a LookUpTable (LUT) to your image you only change the display
> mapping (=how it is displayed on the screen). The values of the pixels
> remain unchanged. Therefore the colour(s) are not preserved if you save
> your image. In order to get "permanent" colours you need to change the
> format of your image (Image-->Type-->) to "8-bit colour" or "RGB" before
> saving.
>
> Cheers Arne
>
> > -----Original Message-----
> > From: ImageJ Interest Group [mailto:[e-mail]] On Behalf Of
> > Jirí Borovec
> > Sent: mercredi 19 septembre 2012 12:22
> > To: [e-mail]
> > Subject: apply custom LUT
> >
> > Good morning,
> > maybe it will sound as really stupid question but I couldn t found how
> to do it.
> > I have 8-bit image and I want change some colours manually, so I used
> > Image>Colour>Edit LUT...
> > http://rsbweb.nih.gov/ij/plugins/lut-editor.html
> > I changed the colours by my  will but when I save the image the colours
> are
> > same as on the beginning.
> > Do you have any advice what to do to save the changed image?
> >
> > Thanks
> > --
> > Best regards and wishes of a pleasant day, Jiří Borovec
> >
> > --
> > ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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