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No color in my stars

Starpartyguy
in General
When I use LRGB Combine with all the sliders for L,R,G, and B pushed to 1, my stars have no color.

I had to set luminance to around .14. Is that common?

Thanks.

Comments

  • BlockHeadBlockHead
    It depends on the data.... but that seems much.
    My guess is that you might need to adjust the relationship between your color image and your luminance. One, the other, or both could be too bright.
    If you have watched my videos on this subject closely, you know the magic number is 0.8. you simply cannot exceed this (in either image) and have much hope of retaining much color. 

    -the Blockhead
  • Starpartyguy
    Thanks. That does sound familiar. Have to go over that video again. I do remember something like that in the ccdstack and photoshop tutorials. I'll have to go over the info again.

    Thanks.
  • Starpartyguy
    As I was relaxing in my cushy couch, petting my beagle’s belly, I realized what I did. I used hst on the luminance image. I should have kept it in a linear state 

  • BlockHeadBlockHead
    Hmm... well, you might want to rest on the couch again.
    When doing LRGB combination (with just the L field populated)- you will have a stretched image for L and a stretched RGB image. Hopefully you are not trying to do the four channel combo. 

    Please see my video on NGC 3486 ... 
    You will see me do the LRGB combination. You will not see me lower the value as you describe. 
    Specifically around minute 6:30 of this video:

    -the Blockhead
  • Starpartyguy
    Actually I am watching this series now and that video is next on my list. 

    Your work is amazing!
  • Starpartyguy
    I watched both lrgb videos. Your comment at the start of the first video pretty much summed up my approach to the luminance data. I just figured to process it along with the color in one process. Think I’ll go back to wbpp and pay closer attention to the video. 

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