Re: converting colors

Posted by Jacqueline Ross on May 08, 2014; 11:38pm
URL: http://imagej.273.s1.nabble.com/converting-colors-tp5007615p5007645.html

Yes thanks Michael,

You beat me to the reply. Good luck Sharmon.

Kind regards,

Jacqui

Jacqueline Ross
Biomedical Imaging Microscopist
Biomedical Imaging Research Unit 
School of Medical Sciences 
Faculty of Medical & Health Sciences
The University of Auckland
Private Bag 92019
Auckland 1142, NEW ZEALAND

Tel: [phone]
Fax: [phone]

http://www.fmhs.auckland.ac.nz/sms/biru/

-----Original Message-----
From: ImageJ Interest Group [mailto:[hidden email]] On Behalf Of Sharmon Lebby
Sent: Friday, 9 May 2014 6:41 a.m.
To: [hidden email]
Subject: Re: converting colors

Hi Michael,
Thank you! I appreciate the help!

Sharmon Lebby
Research Assistant
University of Texas San Antonio

On May 8, 2014, at 11:40 AM, Michael Schmid wrote:

Hi Sharmon,

ImageJ has a built-in Wand tool (8th from left in the tool bar), but this has a few restrictions:
- It can select only one area at a time
- It only traces the outline, any inner holes are selected with the object.
-Note that you should set the options by double clicking the tool. The default mode, 'Legacy', may be unreliable in some cases.

There is a plugin called Versatile Wand; it gives you more options:

http://imagejdocu.tudor.lu/doku.php?id=plugin:segmentation:versatile_wand:start


Michael
________________________________________________________________
On May 8, 2014, at 16:20, Sharmon Lebby wrote:

Hi Jacqui,
Thanks for the advice. I've tried these and find I'm not 100% sure how to go about these options.  I also can't find the "Magic Wand" is this a plugin?

Sharmon Lebby
Research Assistant
University of Texas San Antonio

On May 7, 2014, at 5:20 PM, Jacqui Ross wrote:

Hi Sharmon,

You could use the Magic Wand to select the white foreground and then fill the selection with red (Edit fill) by changing the Foreground colour in the colour palette.

I'm assuming that your background is all the same grey value, i.e. white and that you want a solid red foreground.

Otherwise, you might be better to make the image greyscale and then use/create a Look Up Table.

Kind regards,

Jacqui

Jacqueline Ross
Biomedical Imaging Microscopist
Biomedical Imaging Research Unit
School of Medical Sciences
Faculty of Medical & Health Sciences
The University of Auckland
Private Bag 92019
Auckland 1142, NEW ZEALAND

Tel: [phone]
Fax: [phone]

http://www.fmhs.auckland.ac.nz/sms/biru/


-----Original Message-----
From: ImageJ Interest Group [mailto:[hidden email]] On Behalf Of Sharmon Lebby
Sent: Thursday, 8 May 2014 5:13 a.m.
To: [hidden email]
Subject: converting colors

Hi,
I have an image that currently has a black background and red foreground.  What I want is a white background with a red foreground for easier viewing in a presentation. I'm wondering if this is something that can be accomplished in ImageJ.  I've tried importing an .ims file as a hyperstack using custom coloring (white foreground, black background) and then inverting the image but is there a way to then change the foreground to red?


Sharmon Lebby
Research Assistant
University of Texas San Antonio


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