Saving LUT colorized images

[Anton Orlichenko]

Hi all,

I have an image (actually a stack of images) which I render using a 16-color LUT. How do I make it so that the false color remains in the saved image?

Currently saving just outputs BW.

Thanks and happy new years!

[Gabriel Landini]

On Saturday 02 January 2010, you wrote:
> I have an image (actually a stack of images) which I render using a
>  16-color LUT.

Not sure how to save those, but LUTs in IJ are 8 bit, so I think that you are
seeing only 256 colours (I think several greyscale values on the 16 bit image
are mapped to the same LUT entry).
You could convert that to RGB to have an image that shows what you are seeing
on screen (use Plugins>Utilities>Capture Image).

Cheers,
G

[Anton Orlichenko]

Gabriel Landini wrote

You could convert that to RGB to have an image that shows what you are seeing
on screen (use Plugins>Utilities>Capture Image).

Cheers,
G

Thats true but Capture Image captures the entire screen

It would be nice if I could save the colorized image as an RGB bitmap
Or even better a stack of bitmaps (such as a .tif)

[Joachim Wesner]

>Thats true but Capture Image captures the entire screen

NOPE!

Capture screen - as the name implies - captures the entire screen.

Capture image only the active window! Try it

Cheers!

Joachim Wesner


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[Gabriel Landini]

On Sunday 03 January 2010 20:00:45 you wrote:
> > I wrote:
> > You could convert that to RGB to have an image that shows what you are
> > seeing on screen (use Plugins>Utilities>Capture Image).


> Thats true but Capture Image captures the entire screen

No,  "Capture *Screen*" does that, I suggested "Capture *Image*" which does
what I described.

G.

[Anton Orlichenko]

Gabriel Landini wrote

No,  "Capture *Screen*" does that, I suggested "Capture *Image*" which does
what I described.

OK, my mistake.

However, there's no "Capture Image" plugin in the Plugins->Utilities menu
Can I download it from somewhere?

BTW I'm using ImageJ 1.37 running on OSX 10.4

[Wayne Rasband]

> Hi all,
>
> I have an image (actually a stack of images) which I render using
> a 16-color LUT. How do I make it so that the false color remains
> in the saved image?
>
> Currently saving just outputs BW.
>
> Thanks and happy new years!

Convert to RGB using the Image>Type>RGB Color command and then save the image. The Plugins>Utilities>Capture Image command will also work but it requires ImageJ 1.42 or later. Or use the Image>Overlay>Flatten command, available in ImageJ 1.43 and later.

-wayne

[Anton Orlichenko]

Wayne Rasband wrote

Convert to RGB using the Image>Type>RGB Color command and then save the image.

This worked