Color space for exported mattes

I work as a stereo composer and find that I am often creation and composition of elements in several programs according to my needs. This can become a bit confused trying to maintain the appropriate color space and to ensure that items are formed with the mast it was meant to do.

My questions are:
What color space is a mast that is exported by the Alpha as a .png? .png files are sRGB, should I assume that a mast exported from the alpha channel is so? even if the mast has been created in a project with .dpx files or .exrs logarithmic?

If a cache is created in the RGB layers (a black and white mast without real alpha channel), the exported file match the color space of the type of file that is rendered (sRGB if it's a .png)?, would be the color space determined by that of the original source that the mast has been created from (newspaper if it were .cin)? Or would the color space in this case be dictated by the settings of the project?

Please let me know if anything that I have not has said. Any information on the management of color space relative to the creation and export of the mattes would be useful.

Thanks a bunch!

I guess I really explicit does not respond to your question:

Yes, if you import a movie (and the film is be a cache), while the film will be interpreted using a profile of color like any other movie. Just because a movie to grayscale DPX format happens to be intended to be used as cache, it doesn't prevent it somehow be interpreted differently from the other films in the same format.

You can change the parameters of interpretation to assign an input color profile, and you can choose to keep the RGB values (that is, not color - manage them).

Tags: After Effects

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