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Aspect ratios, pillarbox and letterbox

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Paul Guarri
Aspect ratios, pillarbox and letterbox
on Jun 1, 2017 at 6:53:38 am

Hi, I work for a post facility and I deal with different formats and aspect ratios, mostly for digital cinema delivery.
Sometimes I'm asked to deliver to broadcasters. In their specs, I don't find any suggestion on how to deal with letterboxing or pillarboxing. For example, a 2K film scaled down to 1920 x 1080 leaves some small black letterbox... And a Full HD video leaves some minor pillarbox when scaled to widescreen SD. What is the common practice? Should I leave these letterbox / pillaborx or it's better to scale up the image (and slightly crop) to fill the container?


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Bouke Vahl
Re: Aspect ratios, pillarbox and letterbox
on Jun 6, 2017 at 10:39:22 am

There is no answer.
Some broadcasters have specs, some don't
Then their is your / the directors taste.
Then there is the concern that 'some' TV sets do 'smart scaling', detecting letterbox / pillarbox and do 'something' to the image to 'make it look better'

Watch TV, see what you like. (Eg nowadays it's common to do a blurred / mirrored version left right for vertical video from a phone (or supposedly to be phone)

For theater, I would always letterbox / pillarbox with black if it's mixed sources. But that's a different viewer experience.

Bouke
http://www.videotoolshed.com


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Paul Guarri
Re: Aspect ratios, pillarbox and letterbox
on Jun 13, 2017 at 4:24:31 pm

Thank you very much for you answer...


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