[opendtv] Re: 2.35:1 on 16:9 screen (was: Mobile TV coming of age)

  • From: Kon Wilms <kon@xxxxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Wed, 14 Jul 2004 09:33:27 -0700

jeroen.stessen@xxxxxxxxxxx wrote:
>>It concerns the ability or otherwise of being able to expand a
>>2.35:1 aspect image to fill the screen vertically while retaining
>>the correct proportionality of images, i.e. simply eliminating
>>some of the width to result in 16:9 aspect.
> There is no such thing as "simply eliminating some of the width" !
> Only when there are empty side pillars, or when the picture content
> is protected by pan-scan vectors, could one safely cut off some of
> the side information. We have chosen not to do this in our TVs.

Thats a pity. As you know the most widely used HTPC video player is 
zoomplayer. People use it because of its ability to scale the picture in 
  any user-definable way. This type of zoom is possible on xbox media 
center too (the screen dimensions of your display are manually 
configured (4 corners) in a setup menu and then one can use modes such 
as stretch mode or zoom mode to fill any source to the screen).

I have no idea why people complain about retaining that 15 pixels of 
data on each side of the image to spite themselves with a letterbox. You 
guys should listen to the regular folks, not technical users. The 
comment I always hear from people who come over to watch movies at our 
place is one of 'I thought this was a widescreen tv, why does it have 
black bars, and why can't you get rid of them'...'sorry, my tv sucks' 
(explaining aspect ratio is futile).

BTW while on the subject of scaling, I wish more manufacturers would 
adopt the 4x3 to 16x9 scale mode that toshiba uses, whereby 10 pixels 
are 'cut' from the top and bottom of the 4x3 picture and a linear 
stretch applied to the horizontal axis. It (almost) eliminates the 
fishbowl effect. Perhaps they have a patent on this method, who knows.


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