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Keying GIF image background

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Tom GilbertKeying GIF image background
by on Feb 4, 2016 at 2:52:57 pm
Last Edited By Tom Gilbert on Feb 4, 2016 at 5:19:45 pm

Hello,

I am trying to key gif image and use it for my video. This is the image I am editing ( https://www.dropbox.com/s/d7r2rusuusupl9e/dance.gif?dl=0 ). However, when I add it to After effects a white background appears ( https://www.dropbox.com/s/45k1bajoaro6e8p/Screenshot%20%289%29.png?dl=0 ). Trying to remove it with Keylight doesn't work because it's an empty space (somehow AE shows me it in white, while in Photoshop all gif layers are transparent). Though Color key effect helped me in this situation and keyed white background. Even so, there is some noise on the edge which cannot be removed using earlier method https://www.dropbox.com/s/z58093ukcs207c1/Screenshot%20%2811%29.png?dl=0 , https://www.dropbox.com/s/x26yy2rol18uf2e/Screenshot%20%2812%29.png?dl=0 . Maybe someone could help me by giving advice what should I do in this situation?

Thank you


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Michael SzalapskiRe: Keying GIF image background
by on Feb 4, 2016 at 9:45:38 pm

Use the Extract effect rather than Keylight.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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John CuevasRe: Keying GIF image background
by on Feb 5, 2016 at 2:18:10 pm

You might also try a luma key and set it to key out brighter.

Johnny Cuevas, Editor
ThinkCK

"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.


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John CuevasRe: Keying GIF image background
by on Feb 5, 2016 at 2:48:11 pm

The big issue is you are working with a very compressed image, so removing all the white that occurs due to the motion blur is going to be practically impossible.

Johnny Cuevas, Editor
ThinkCK

"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.


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Tom GilbertRe: Keying GIF image background
by on Mar 1, 2016 at 12:19:37 pm

Thank you guys for helping me out.
Like John said, it was impossible to correct edges automatically, so I had to do it manually via photoshop. Interesting that in photoshop I had 24 different layers, while AE showed 42 frames, where some of them were duplicated. However, the best that worked for me about auto fixing edges in AE was to add "shift channels" and "find edges" effects. Then I created adjustment layer below and changed it to luma inverted. Then added various color changing effects to it.


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