Video Asylum

RE: black bars explained

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cdb

In Reply to: RE: black bars explained posted by Joe Murphy Jr on May 20, 2012 at 09:31:52

I think she was describing videotaped television broadcasts where credits or on screen text is loped off on the sides by vertical bars.

I've seen that myself, it looks cheezy, and yeah, it was usually a PBS station.

Follow Ups:

no, she's referring to windowboxing - Joe Murphy Jr 15:38:55 05/20/12 (0)
windowboxing

She said:
"So the broadcast is a 16.9 content, the station broadcasts it into the inside of the standard shadowed off 4:3 screen area, and thus leaving bars above and below the picture.
Yeah Zoom can 'fix it.. But what for?" .

Please explain how zooming, a feature which usually cuts off/crops a picture, can restore picture information that's missing in the first place. (Hint: it can't)

Missing credit information (on the sides of the frame) is usually due to the original picture being zoomed and that "reframed" image recorded for future playback.

Below is a link to the wiki page on letterboxing (aka black bars). Scroll down a bit past 1/2 way and read the section titled "Pillarboxing and windowboxing". Windowboxing is the technical term for the explanation that I provided in my response.
- link (Open in New Window)

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