overscan a movie that is 352x480 ?
8) Is it even worth it to overscan a movie thats 352x480 ?
I use Avisynth 2.5.4 & when I set overscan to "Resize 2" The movies I encode with "Tok" (Fullscreen) look much blockier & worse, Rather than without "Resize 2" Am I doing the wrong setings ? or am I supposed to select "Overlap 2" ? If so ... I can't get "Overlap" figured out for "Avisynth 2.5.4" (I used it back in the dayz of wayback with "Avisynth 2.08") But that won't work with "Avisynth 2.5.4" Can someone tell me In detail what the difference between "Overscan Overlap 2" & "Overscan Resize 2" ... & also can someone give me a sample of what kwags latest script with "Overscan Overlap 2" would look like Please :cry: Thanks In Advance I've waisted many hours & many days on test encodes with no answer 8) |
That is not possible to have a worst image with overscan than without !
The more the overscan is, the bigger are the black borders arround the picture. And the bigger they are, the less you have data to encode. And the less data you have, the higter is the CQ. :arrow: when overscan is raised, quality is raised ! Nevertheless, the diff between overlap and resize isn't in the result (they both give an image of 352*480 with a black border of 16 pixels on each side). The difference is : with overlap, you put the black border ON the image. That means that you can cut the top of the head of the caracter ifor instance. With resize, the picture is REDUCED to enter between the borders. For instance, 352x480 with overscan 2 (so a border of 16 pixels on each side) means that you the picture is reduced to (352-2*16) x (480 - 2*16). This way you do not cut anything.[/quote] For the script is simple : resize Code:
MPEG2Source(...) Code:
MPEG2Source(...) Note : All this is given automatically by moviestacker. You don't use it ? |
8) Thanks for replying dialhot ... that clears up alot for me !!
I wanna use "Overlap" not resize (cuz with resize I lose pixels) Thats why my pic quality sux @ 352x480, I wanna use Overlap but cant figure out how to set it on kwags script with avisynth 2.5.4 (did with 2.08) but now I need help with 2.5x series Can u post what Kwags script with overlap 2 would look like >? Please 8) N/M THANK U !!! 8) |
Quote:
See me words : Quote:
If the picture is good in 352*480, it is BETTER when you use overscan WHATEVER this overscan is (overlap or resize). If the picture suck in 352*480 with overscan then that means that this resolution is too big for that movie. Quote:
|
8) I meant ta say that I'd rather use overlap & add black borders overtop of a movie rather than resize & squish the picture together even more than it already is with 352 x 480
Thanks Bro !! 8) |
Quote:
Thanks Bro !! 8)[/quote] You're welcome. |
Dunno But Its not doing anything :cry:
|
As a rule of thumb:
Use "Resize" for Full Screen movies. Use "Overlap" for Wide Screen" movies. -kwag |
Quote:
|
Friends please keep in mind that 352 as width value will be stretched two times!
That would mean if overscanning (wrong word but you know what I mean) a 352x480 and choosing the value of 2 in Gripfit which causes 16px on each side: Finally on tv you get a overscan area of 32 which you could see on most Tv sets! as the whole width will be stretched more than for example 704x480, 720x480 or even 480x480. So I recommend to use on 352x480(576) Gripfit's overscan of 1 including adding an overlap on top and the bottom of 16px using letterbox() at the end of the script That ends up in: ------16----- 8-----------8 ------16----- = perfect in case of 352x480(576) Edit: even if finally the image will be stretched to 640x480 (NTSC square pixels) this would be the better way, well as by this I afterwards do not say its perfevt anymore as I do not own a NTSC tvset neither I do get NTSC signal :) :arrow: just try as you live in NTSC Tvset land ;-) |
Thanks u guys all 3 of u 8)
|
Quote:
|
The problem in "resized" overscan areas on Widescreen movies is that a 2.35:1 proportion fitted in 4:3 already gots very large borders and therefore a too small movie treatment area. You also can do a PANSCAN to 1.85:1 and THEN resized Overscan but that would mean even more loss of movieinformation at the sides but on the other hand a larger Picture on TV....
... but as we do KVCDs in here its anyway not the way as this would cause significant loss of CQ ;-) |
Site design, images and content © 2002-2024 The Digital FAQ, www.digitalFAQ.com
Forum Software by vBulletin · Copyright © 2024 Jelsoft Enterprises Ltd.