Re: [Deinterlace-discuss] Is a non-linear stretch mode planned?
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From: Mark R. <ma...@ot...> - 2001-01-10 11:14:03
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Hi, I would love this nonlinear stretch as well. =20 I always zoom my 4:3 material to 16:9, so stretch modes are welcome. Paul Simoneau wrote: >=20 > To add to the point : >=20 > I have a very similar HDTV model, the Philips 55PP9701, with the only > differences being the size and the lack of an integrated ATSC tuner. > So, I can expand a little bit on what Steve proposes. >=20 > The Philips models offer a few of the "standard" widescreen "stretch" > modes, and like many other manufacturer's sets, the only operate in the > interlaced mode. Once a progressive or HDTV input is selected, you're > stuck in HDTV/progressive-squeeze mode. No aspect ratio manipulation. > So, this isn't a problem unique to Philips, but to most HDTV sets. >=20 > 1. Standard 4:3 mode : 4:3 frame with black bars on the sides of the im= age > 2. 16x9 mode : do the anamorphic squeeze > 3. Theater-1 : zoom in on a 4:3 image which contains a 1.85:1 letterbox > 4. Theater-2 : zoom in MORE on a 4:3 image which contains a 2.35:1 lett= erbox > 5. Panoramic : approximately the middle 1/2 of the 4:3 image is left > intact, while the outer 1/4's of the image on either sid= e > are "streeeetched" to fill the rest of the raster and > prevent the need for any bars. The further towards the > edge you go, the more stretch is introduced. >=20 > I view all 4:3 source material in the Panorama mode. The stretching > on the sides isn't too objectionable, and you don't lose any of the > original source frame (as you do in the Theater-X modes). >=20 > (BTW, the Philips already incorporate an "orbit" feature. > Automatic Phosphor Aging Compensation =96 APAC.) >=20 > I think this would be a big win for all widescreen users of dTV. >=20 > However, given that there would have to be a field-by-field > manipulation in order to do some kind of stretch function on > the source data, how much additional CPU horsepower would this > require ? Quite a bit, I might imagine. >=20 > Would be nice, though... >=20 > Paul Simoneau > Integral Access, Inc. > psi...@in... >=20 > > -----Original Message----- > > From: dei...@li... > > [mailto:dei...@li...]On Behalf Of > > Daniel Schmelzer > > Sent: Monday, January 08, 2001 10:34 PM > > To: dei...@li... > > Subject: [Deinterlace-discuss] Is a non-linear stretch mode planned? > > > > > > Hi All-- > > > > Interesting requests from SteveT on AVS Forum at: > > > > http://www.avsforum.com/ubb/Forum12/HTML/006836.html > > > > "First, let me say thanks to all the dTV developers for making > > this awesome > > piece of software available. This work of art the rivals (and in > > many ways > > is better than) the Genesis de-interlacer in my Philips 64PH9905 HD > > RPTV--particularly with dss and video game sources. > > > > I have a question however, regarding the "stretch" mode. Since > > the majority > > of dss programming is in 4:3 AR, I have gotten quite used to using th= e > > 9905's "Panoramic" video mode. This mode stretches the edges of the i= mage > > but leaves the center untouched. The result of this non-linear > > stretch is a > > good alternative to viewing 4:3 material on a 16:9 screen. And while = not > > perfect, it is far less distracting than a linear stretch where > > the entire > > image is stretched horizontally. I believe the type of viewing mode i= s > > standard on most, if not all HD and HD Ready sets. IMHO, it would be = a > > wonderful addition to dTV's feature set. > > > > On a similar topic, are there any plans to incorporate any form of im= age > > "orbiting" (a la yXy) to reduce image burn-in when watching > > letterboxed or > > side-paneled material? > > > > Thanks again for the wonderful work! > > > > Regards -- Steve" > > _________________________________________________________________ > > Get your FREE download of MSN Explorer at http://explorer.msn.com > > > > > > _______________________________________________ > > Deinterlace-discuss mailing list > > Dei...@li... > > http://lists.sourceforge.net/mailman/listinfo/deinterlace-discuss > > >=20 > _______________________________________________ > Deinterlace-discuss mailing list > Dei...@li... > http://lists.sourceforge.net/mailman/listinfo/deinterlace-discuss --=20 _______________________________________________________________________=20 ____=20 Mark D. Rejhon Win2k.Linux.Win98 \ / mailto:ma...@ot...=20 http://www.marky.com/ C.C++.VB.Shell \/ AlphaWorld Home 10S 15W=20 "A friend is someone who will be there without asking anything of you.=20 A friend is someone you know that knows you, and accepts you."=20 _______________________________________________________________________ |