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Aladin contrast help

  1. Mar 6, 2014 #1
    Hello guys, sorry to be a bother but I'm currently undergoing the assessment for Galaxies, Stars and Planets, and for question 3 I'm asked to "create an RGB image from these three images by assigning an appropriate colour (red, green or blue) to each one based on their wavelength."
    I've already had to select the grey colour table and the Asinh contrast, but I've no idea how I combine these three images or assign a colour to each of them.
    I'm hoping that some people here have used Aladin before and could give me some guidace, which would be greatly appreciated. Thanks!
     
  2. jcsd
  3. Mar 6, 2014 #2

    Drakkith

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    Staff: Mentor

    Is there a RGB Image tool or something?
     
  4. Mar 7, 2014 #3
    Looked on image and found it, can't believe I missed it haha! Thanks a lot
     
  5. Aug 29, 2015 #4
    I have the same problem this year. Using the RGB pop-up I can get the three images singly, I can't get them all to appear to be transferred together. Did you work it out? Would like to know how, if you can remember.
     
  6. Aug 29, 2015 #5

    Drakkith

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    Staff: Mentor

    Have you looked at the user manual? The instructions for the color image builder are on page 65: http://aladin.u-strasbg.fr/java/AladinManual6.pdf
    It looks like you just open the builder, assign an image to each color channel, and then click "Create".
    Have you tried that?
     
  7. Aug 30, 2015 #6
    Thank you very much for your reply. I have copied p.65 and it will be a help, but I haven't managed to get the three images on to the stack together. I put one on but the next one is not added to the stack. It replaces the first one. .
     
  8. Aug 30, 2015 #7

    Drakkith

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    Staff: Mentor

    Sorry, I can't help you then. I'm not familiar with the software. :frown:
     
  9. Aug 30, 2015 #8
    Thanks anyway. I'm working on it.
     
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