What effect is used to get this purple type of hazy colour? I am not talking about the green, but only the purple look, where you are almost seeing an item twice. I understand that the blue colour got shifted, however how is this hazy purple achieved.
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4@flolilolilo It's not just you, definitely been here before. Probably been cleaned up by the automated removal now. – Philip Kendall♦ Feb 15 '19 at 22:54
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1Possible duplicate of What is this effect with blue and yellow color shifts around objects? -- with a different color channel. – xiota Feb 16 '19 at 1:15
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2Important information for asking “What's this effect?” questions and What's the best way to ask a “How do I achieve this effect?” question? – Michael C Feb 16 '19 at 6:28
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I posted a few days ago, but my question was not clear enough, so i got no helpful answers. – Saffi Feb 16 '19 at 17:53
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1I think it would help to put the specific question in the title. Imagine how many completely different questions could have the title you've chosen. – mattdm Feb 16 '19 at 18:33
I think you're talking about the color-separated doubled areas, like this:
right?
It's pretty hard to really tell with a low resolution, very low quality sample where the center has been scribbled over. But my guess is that this is a post-processing digital effect meant to roughly simulate exaggerated chromatic aberration, which causes different wavelengths of light to align differently.
Again, it's hard to tell, but I suspect that what this filter did is
- simply separate red, green, and blue color channels,
- apply some scaling or transform to those channels separately, and
- recombine.
Or, it might be as simple as running a 2D image through a "create stereo image filter". There's one in gmic, and here's a very quick demonstration using an image from this site's image of the week (original by VonsShnauzer on flickr).
We start with:
and then
giving us
... so maybe that's what you want?
That purple haze is most likely done by deliberately (accidentally?) using a "wrong" white balance (WB).
Composite of a "proper" WB (left) and the same picture with thrown-off WB (right). "proper" = "most probably not 100% accurate, but to my personal liking".
Method 1:
- Use the Instagram (or whatever) "filter".
- Scribble green over face.
Method 2:
- Using state-of-the-art cell-phone-camera technology from two decades ago, take a badly composed selfie in low light – with total disregard for white balance, as noted by flolilolilo.
Shift the color channels, as described by mattdm.
Scribble green over face.
Method 3:
- Shift the color channels. (I "borrowed" mattdm's work.)
- Blur the image.
- Add noise.
- Create a new layer filled with gray, low opacity (~3%).
- Create a new layer filled with purple, color blending, opacity to taste.
- Scribble green over face. (I skipped this step.)
Not "hazy" enough? Wrong shade of purple? Go back to method 1.