Announcement

Collapse
No announcement yet.

I've been experimenting with the Free version of Luminar 4

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • hectorsm
    replied
    Originally posted by Greyfox View Post

    If you take away the time Alec spends explaining what he is doing because it is a tutorial, the process itself would probably take him only a couple of minutes. I don't see that as a lot of work. For images that require replacing the sky I would probably spend more than that just choosing a suitable sky that matches the lighting, and "feel" of the original shot.

    Here is one done in ACDSee in around 2 minutes using the method used in the video. Note that the thin rigging wires are still intact (though they do pixelate quite quickly with the low res screen shot) and there is some bleed on the masts which I haven't bother to remove.

    Click image for larger version Name:	ACDSee Blended Sky.jpg Views:	5 Size:	575.3 KB ID:	58805
    I've never done this kind of work before, so it seems complicated to me. I guess it's more a matter of learning how to use the tools. Once you learn the tools and what to do, it may not be as bad as it looks. Where do you get your sky's? I might try it, just to learn.

    Hector

    Leave a comment:


  • Greyfox
    replied
    Originally posted by hectorsm View Post

    I saw the video. It's interesting but a lot of work
    If you take away the time Alec spends explaining what he is doing because it is a tutorial, the process itself would probably take him only a couple of minutes. I don't see that as a lot of work. For images that require replacing the sky I would probably spend more than that just choosing a suitable sky that matches the lighting, and "feel" of the original shot.

    Here is one done in ACDSee in around 2 minutes using the method used in the video. Note that the thin rigging wires are still intact (though they do pixelate quite quickly with the low res screen shot) and there is some bleed on the masts which I haven't bother to remove.

    Click image for larger version  Name:	ACDSee Blended Sky.jpg Views:	5 Size:	575.3 KB ID:	58805
    Last edited by Greyfox; 01-04-2022, 12:46 AM.

    Leave a comment:


  • hectorsm
    replied
    Originally posted by Greyfox View Post
    Glen Barrington

    There is a quick ACDSee tutorial on sky replacement here https://www.google.com/search?client...Y4-EPy8WB2AI27

    The bleed as you call it in Luminar 4 as I understand it was considered somewhat beneficial because a change of sky between say a bright mid day sun and a gold sundown in the real world would affect the coloring of other objects in the image.

    It is particularly noticeable in real estate photographs when you substitute a bright blue sky over houses that have white tiled roofs. There are some adjustments in the L4 sky replacement tool to manipulate this, but in the end one nearly always had to use masking. The L4 process in my view is based on blending as is the ACDSee tutorial above.

    On a side note. It was and is possible to get good results from the L4 sky replacement tool, but it did cause some angst. Because of the "AI" tag, some expected to be able to get professional results with no skill requirement. For sky replacement to be believable that isn't the case.
    I saw the video. It's interesting but a lot of work. The results are not that great even after multiple brushes and layering. This is something I'll rarely need but mighty be useful at times.

    Hector

    Leave a comment:


  • Greyfox
    replied
    Originally posted by Glen Barrington View Post
    ..Especially so since the bleed is so, SO obvious!
    For those who have spent the time to learn how to get the best out of the sky replacement tool, bleed is not an issue.

    The screen shot below shows a 2 minute sky replacement with a change in general warmth, done in L4.

    Click image for larger version

Name:	Sky replace.jpg
Views:	193
Size:	478.5 KB
ID:	58800

    L4 is not be any means one of my favorite applications, but it does have some useful tools. I use it as a plug in from ACDSee's Edit mode.

    Leave a comment:


  • Glen Barrington
    replied
    Originally posted by Greyfox View Post
    Glen Barrington

    The bleed as you call it in Luminar 4 as I understand it was considered somewhat beneficial because a change of sky between say a bright mid day sun and a gold sundown in the real world would affect the coloring of other objects in the image.

    I
    That sounds like marketing spin to me! Especially so since the bleed is so, SO obvious!

    Actually, I'm not all that interested in sky replacement as such, just that I found it interesting that I could see a 'synchronicity' between L4's sky replacement and Pixel targeting.

    At any rate, ACDSee remains safe from Luminar's customer poaching!

    Leave a comment:


  • Greyfox
    replied
    Regor250

    Yep, try replacing an overcast sky showing through a tree or trees with open leaves and thin branches with a bright sunny sky. or replacing a sky behind a subject with blonde flyaway hair.

    Sky replacement is fairly common for photos used for real estate sales advertising. You probably won't see many advertisements where the property images have a dull or stormy sky, but that may well be what was there the day the photos had to be taken.

    Leave a comment:


  • Regor250
    replied
    This is also a feature in ACDSee Gemstone. That said, I find that these AI selection tools while working great on "easily selected subjects/skies" in general, do struggle when the background (or foreground for skies) becomes more complex. Bright skies are easy, just do a luminosity selection. Things get more difficult when you separate small details with antialised edges in a very different color than the new background. I wish ACDSee would create a "re-antialise edges" function, that would be awesome in blending small details with a new background, while preserving them.
    Last edited by Regor250; 01-02-2022, 05:25 PM.

    Leave a comment:


  • Greyfox
    replied

    Glen Barrington

    There is a quick ACDSee tutorial on sky replacement here https://www.google.com/search?client...Y4-EPy8WB2AI27

    The bleed as you call it in Luminar 4 as I understand it was considered somewhat beneficial because a change of sky between say a bright mid day sun and a gold sundown in the real world would affect the coloring of other objects in the image.

    It is particularly noticeable in real estate photographs when you substitute a bright blue sky over houses that have white tiled roofs. There are some adjustments in the L4 sky replacement tool to manipulate this, but in the end one nearly always had to use masking. The L4 process in my view is based on blending as is the ACDSee tutorial above.

    On a side note. It was and is possible to get good results from the L4 sky replacement tool, but it did cause some angst. Because of the "AI" tag, some expected to be able to get professional results with no skill requirement. For sky replacement to be believable that isn't the case.
    Last edited by Greyfox; 01-02-2022, 04:43 PM.

    Leave a comment:


  • I've been experimenting with the Free version of Luminar 4

    Sheesh! ACDSee doesn't have anything to worry about! If you want to read my thoughts, you can find it on DPR in the retouching forum.

    But the one interesting tool they have is an automated sky replacement. As near as I can tell, it uses an AI version of something similar to Pixel Targeting tweaked for sky replacement.

    I suspect this because the new sky tends to bleed into the portion of the photo where it should be masked out. In experimenting with L4 sky replacement, I noticed that the replaced sky would only bleed into areas that are the same color and luminosity as the sky, or very close to it. If so, I should think this is a quick and dirty way to create the sky replacement mask, but at the cost of quality work.

    I wonder if a series of actions could be created to do this in ACDSee Ultimate? I suspect a Pixel targeted mask could be coupled with layers to 'touch up' the mask before sky replacement, and thereby eliminate the bleed-over. It might be a cheap and easy way to add buzz to a new release.

    Does anyone have any ideas on how to go about this in a manual fashion?
Working...
X