Improve the image?

[Fryer]

I have ripped a dvd witch hade 2 conserts on it, so I hade to split them up on seperate discs, but the bitrate on each consert is around 3200, and the total disc size is 3,2 gb, is there possible to improve the image and re-encode it so it get higher bitrate?

[TheSeeker]

Did you just rip them then split them up with no reencoding? If so the bitrates you see are the original bitrates and I THINK any attempt to encode at a higher bitrate is either impossible or will degrade quality, meaning that the quality is as good as its going to get. Now, its a different story if you have encoded them and acheived this bitrate. In which case you MAY be able to remove more audio streams to gain bitrate for video or you could use RB-Opt to specify a lower bitrate for credits thereby gaining some bitrate to be reallocated to the main movie video.

[Fryer]

Yep, I have just split them up with no re-encoding.
So there is no way to improve the bitrate of the consert.

[TheSeeker]

I THINK you could re encode at a higher bitrate. But Im pretty sure you will se NO increase in quality and MAY actually see a decrease in quality. Any of you big dogs care to lend your opinion on the matter??

[Boulder]

Such a re-encode cannot be any better than the original. The only exception is that if the source is extremely noisy and you manage to clean it properly, it _might_ look better re-encoded.

Thus, no sense in re-encoding.

[Socio]

Originally posted by Boulder
Such a re-encode cannot be any better than the original. The only exception is that if the source is extremely noisy and you manage to clean it properly, it _might_ look better re-encoded.

Thus, no sense in re-encoding.

I beg to differ,

Using Didee's IIP (http://forum.doom9.org/showthread.php?s=&threadid=70916&perpage=20&pagenumber=1) script for Avisynth particularly the IIP/LimitedSharpen combo script has made noticeable improvements to anything I have tested it with including Starwars EP1, new Empire Strikes back and LOTR Two Towers.

You absolutely can re-encode and improve quality only draw back is the time, if you re-encode using scripts like those expect it to take days and I mean that literally

[jdobbs]

All filters distort the picture -- pure and simple.

I would never recommend using a filter on a clean clear source. Period.

However, sometimes distortion is better than what you started with. Normally, though, that is only true when there are problems with the original that are being fixed (undot is a good example, as are some other "cleanup" filters).

[Socio]

Originally posted by jdobbs
All filters distort the picture -- pure and simple.



I respectfully disagree;

Distortion by most definitions is an “unwanted change” and some filters do cause unwanted changes, but that is usually if they have been poorly configured or the wrong ones for the job. However scripts/filters like the ones I have been using when properly configured do remove noise, sharpen edges and bring out more detail in the image, I would called that refinement NOT distortion.

Look at the new release of the Starwars trilogy, did they not basically take the old masters use filters to remove noise, sharpen edges, bring out a lot more detail, and otherwise enhance the PQ and I certainly would not call them distorted not by any stretch.

[jdobbs]

Sorry -- but I know the definition of distortion. It has nothing to do with whether you want it or not. It has nothing to do with whether the output looks better or worse.

I'll stand by what I said. Sometimes distortion might be better than the original -- but it is distortion none-the-less.

[dragongodz]

I beg to differ,
You absolutely can re-encode and improve quality only draw back is the time
Socio - you should reread what Boulder said. he said if the original source is less than perfect, such as containing noise etc., then filtering/cleaning can appear better re-encoded. this does not mean that all sources will improve with filtering since if the source is already clean you can actually introduce changes which reduce the quality.

Distortion by most definitions is an “unwanted change” and some filters do cause unwanted changes
http://dictionary.reference.com/search?q=distortion

besides its picking at semantics guys. distortion, alteration, whatever. call it what you will it boils down to the same thing, changing the original image, so lets just leave it at that.