Several methods of ae keying

The following will introduce you to several methods that require relatively high material requirements, but are very simple and perfect when cutting out pictures. I hope it will be useful to everyone learning AE.

(1) If the material image is mainly blue background, first use some kind of color key (such as Color Difference Key color difference key) to create an orange solid layer as a reference background, and use the Matte View ) Adjust the keying range, including transparent, translucent and opaque areas. Then use the Spill Suppressor overflow controller to eliminate the traces left by the keying color; Alpha Level adjusts the transparency of the Alpha channel: Matte Choker mask blocking tool withers After adjusting the holes in the mask to your satisfaction, replace the solid layer with the new background material in the composite image. Finally, according to the material changes, adjust the keying and masking parameters, and set key frames to complete the work.

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(2) Method for keying materials with smooth brightness on a blue or green background:

First, you can use the Color Difference Key color difference keying, and then use the Spill Suppressor overflow controller to remove traces of the keyed color. If you are more demanding, you can also use the Simple Choker tool and the Matte Choker tool for fine adjustments. If the result is not satisfactory, temporarily turn off Color Difference Key and use Linear Color Key again.

(3) How to key dig materials that contain multiple colors or unstable brightness on a blue or green background:

First apply Color Range color range keying, and then use Spill Suppressor spill controller and other masking tools. If the results are not satisfactory, reuse or add a Linear Color Key.

(4) Method to produce transparency in dark and shadowed areas:

First use Extract to extract the key control and set it to the Luminance Channel brightness channel.

(5) How to apply keying to a fixed background (can be a complex background):

First use Difference Matte difference mask keying, with a separate background layer As a mask reference, make the difference. Then add the Spill Suppressor overflow controller and other masking tools.

For different actual situations, choose the appropriate keying method to get satisfactory results. For complex keying processes, different keyers may be used to obtain satisfactory results, and two or more keyers and masks can be combined. Observe the keying effects by applying or not applying effects via the effects switch.

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