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  1. When I use Santiag() in my script it brightens the overall image and colors slightly. You can kind of see a white film or brighter looking image over the picture and colors when using it.

    Is there a parameter or setting that will keep that form happening?

    Is there a reason its happening?
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  2. I don't see that here. I verified with a levels chart that Santiag doesn't cause a levels change.

    Code:
    AviSource("levels.avi") 
    Interleave(last, Santiag())
    ConvertToYUY2().VideoScope()
    What does your script look like?

    <edit>

    I also just checked with ColorBars() and viewing the U and V channels. No changes to overall color saturation there either.

    </edit>
    Last edited by jagabo; 27th Jul 2014 at 18:06.
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  3. Member
    Join Date: Sep 2007
    Location: Canada
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    Originally Posted by killerteengohan View Post
    When I use Santiag() in my script it brightens the overall image and colors slightly. You can kind of see a white film or brighter looking image over the picture and colors when using it.

    Is there a parameter or setting that will keep that form happening?

    Is there a reason its happening?


    Because it's an antialiasing function, It's going to depend on the type of content and amount of fine details and lines in your source. No fine lines, or details => no change. Lots of fine lines => lots of change

    It's going to happen to some extent with any AA function. The stronger the AA , the more the effect. The more lines & fine details , the more the effects

    You can try adjusting for it by using levels, tweak, etc.. but it's probably going to mess other things up because you'd have to adjust it dependent on the content and amount of detail
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  4. Member
    Join Date: Sep 2007
    Location: Canada
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    Extreme example to illustrate

    santiag()
    coloryuv(analyze=true)

    a: lots of fine lines
    Name:  a fine lines.png
Views: 41
Size:  72.7 KB

    b: lots of fine lines + santiag
    Name:  b fine lines santiag.png
Views: 43
Size:  83.6 KB

    c: no lines
    Name:  c no details.png
Views: 47
Size:  60.3 KB

    d: no lines + santiag
    Name:  c no details.png
Views: 47
Size:  60.3 KB

    e: lots of fine lines + santiag(2,2)
    Name:  e fine lines santiag(2,2).png
Views: 42
Size:  82.0 KB


    Basically the more the fine details, the sharper your content, the more fine lines, the stronger the AA function, the stronger the effect
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  5. Those are local changes not overall changes. You've just assured that the entire frame is filled with those localized changes. I doubt that's the OP's problem. He probably has an incorrect colorspace change somewhere.
    Last edited by jagabo; 27th Jul 2014 at 19:09.
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