<p>Set an adjustment layer, mask it to cover what you want, use the Hue/Saturation color effect, and set the saturation to zero...then on your layer push the e key, and then select the stop watch next to the saturation of the effect. go to where you want it in color, and set the saturation amount.  Done</p>

CC BY-SA 3.0
2013-03-23T08:58:49.690Z
2013-03-23T08:58:49.690Z
Chris James Champeau
<p>I can't give you AE specifics, but one general method would be to have a mono layer and an otherwise identical color layer, keying the color over the mono using a matte layer that you draw on. As portions of the matte layer are turned white, or shades of white, the color layer is revealed.</p>

CC BY-SA 3.0
2013-03-22T21:56:21.440Z
2013-03-22T21:56:21.440Z
Jim Mack
<p>I'm rather new to AE but I believe I have the rotoscoping under control.
How can I gradually (each frame more) colourize an object in a video. So that at first the whole video is black and white and then one object starts to get more and more colour starting from a certain point and allow the colour to spread back to the whole object.</p>

<p>Thanks a lot!</p>

<after-effects>
How to gradually colourize an object in after effects
Ilya Karnaukhov
# How to gradually colourize an object in after effects

(Asked by: username_0 on 2013-03-22)

I'm rather new to AE but I believe I have the rotoscoping under control.
How can I gradually (each frame more) colourize an object in a video. So that at first the whole video is black and white and then one object starts to get more and more colour starting from a certain point and allow the colour to spread back to the whole object.

Thanks a lot!

**Tags:** after-effects


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## 2 answers

### Answer by username_2 on 2013-03-22. Score: 3 | Accepted answer

I can't give you AE specifics, but one general method would be to have a mono layer and an otherwise identical color layer, keying the color over the mono using a matte layer that you draw on. As portions of the matte layer are turned white, or shades of white, the color layer is revealed.


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### Answer by username_1 on 2013-03-23. Score: 2

Set an adjustment layer, mask it to cover what you want, use the Hue/Saturation color effect, and set the saturation to zero...then on your layer push the e key, and then select the stop watch next to the saturation of the effect. go to where you want it in color, and set the saturation amount. Done


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