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point_vector
26th April 2005, 01:40
ok i have a movie that i ripped off dvd and it's anamorphic. the problem lies with the fact that when i resize it(and i cant seem to do this automatically) the picture looks blocky, like the horizontal is off a little bit. i used videosizecalc to get the size for vdub. the original video (in vdub) is 720x480 and videosizecalc said to widen the image to 960x480. i really dont know if this is how you're supposed to resize for anamorphic, but it's the only way i know how, any suggestions?

trevlac
26th April 2005, 13:35
I looked for 'videosizecalc' on this forum and your post is the only mention I could find. Where did you get it?

Seems you have 2 questions .... 1)How to resize, 2)Blocky resize results.

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1) Depends on your final output. A TV does not display like a PC monitor, so for that you use a bit of a different ratio. For a PC, the various players might try to resize for you, especially DVD playing software like powerdvd or windvd ...

If you want to resize animorphic NTSC to a 'raw' size that would look proper on a PC in a viewer that does not resize (like virtualdub) ...

- Don't change the 480.

- 720 is an 'artificial' width that is padded a bit for an NTSC picture. It is intended for a 4x3 picture. You have an animorphic image stuffed into this.

- To get it out 720/3*4 = 960. That only compensates for 4x3 vs 16x9. To compensate for PC vs NTSC TV do 960*.911 = 874

- So resize from 720x480 to 874x480 and crop 5 off of each side down to 864x480 if you are going to encode using some sort of mpeg (its best if the numbers like 864 are a factor of 16).

2) What resize type are you using? Nearest Neighbor will make it blocky. Try lanczos.

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Disclaimer: I've never really converted animorphic dvds for viewing on a PC (or even to SVCD). But I do know a thing or 2 about video. :)

point_vector
26th April 2005, 23:31
i'm wanting to make a dvd out of this, i was just using vdub to do some work to the movie. yes i am using nearest neighbor and i'll try the lanczos. i am going to use it on a tv, i'm just doing the work on a pc. so since i'm going to watch it on a tv would i just ignore what it looks like on my monitor and use what you told me? also i got videosizecalc from some link off neuron2's web page, i can't remember which, but they had some filters on there as well. thanks


edit
ok i did the 874x480 and on my monitor and it looks better than 960x480, it isn't blocky like the nearest neighbor (i used the lanczos), but now my question is, will it look the same on my tv. when i encode the dvd, i want to encode anamorphically, and when i play it on my tv, i don't want it to look funny. what i mean is that they don't look as fat on my comp when resized to but i don't want them to be too skinny on the tv. i don't really care what the pixel ratio is just as long as it looks the same as on the original dvd.

trevlac
28th April 2005, 01:18
Well ....

If you got it from DVD and it was animorphic and you want to put it on DVD as animorphic ... I'm not thinking you should do anything to it.

So ... without a tad more detail it's hard to say. Most people who copy a dvd don't mess with the video. They just copy.