dark movie

[natty]

I have converted a movie using TDA but its very dark is there a program whch can brighten it up a bit. trouble is now its in dvd format like vob files so do i have to change all the vobs back to say .avi or what ever

[guns1inger]

Dark on the TV, or just the PC ?

Basically, if you want to change it you have to start again. If this is the case, I would go back the original source, rather than re-encode mpeg material.

[natty]

its dark on the pc havnt tried it yet on tv maybe I should 1st as I have done something like this b4 and it was fine on tv

[celtic_druid]

There was a version of MPEG2 Requant that can adjust the brightness of MPEG-2. No need to re-encode. m2v input and output only though.

[natty]

where can i find that is it on video help

[celtic_druid]

Not sure. Probably not.
Was as few years ago. There is a long thread over at doom9. I would still have either the source or a binary somewhere. Basic command line app where you specify the brightness as a ratio. Tested it at the time and it worked well. Very fast to since it doesn't re-encode.

[fritzi93]

its dark on the pc havnt tried it yet on tv maybe I should 1st as I have done something like this b4 and it was fine on tv

Yeah, try it on TV first. Guns1inger's right of course, but if you don't want to go back to square one, there's always the filter editor in DVDRebuilder. Levels, or Tweak, for instance.

Interesting about MPEG2Requant. I've used the demo a few times and been impressed how one could control requantizing by frame type. Give it the capability to work with DVD files, or at least program streams, along with a few adjustments such as brightness, and it'd really be something. But perhaps there'd be little call for such a tool, experts wouldn't need it and n00bs wouldn't know how to get the most out of it.

[SingSing]

Dark on the TV, or just the PC ?

Is there a software player that can shows DVD correctly on PC monitor ?
ATI and many graphics cards have very fancy gamma/luminance profile setup, do those help ?

[fritzi93]

Natty, on the off chance someone else finds it useful, I'll post it here rather than in my reply to your PM. You first gotta have DVDRebuilder installed and configured.

Go to: Options -> AVS Options -> Advanced (Expert) Options -> Filter Editor.

Add this line and save:

Levels(0,1.3,255,0,255)

You may also want to include a comment line. Any line starting with # is ignored by Avisynth:

#Corrects gamma for display in a brighter environment. Second value, default is 1.0.

Load the DVD files into DVDRB and re-encode. Be advised that DVDRB will use that Avisynth command every time unless or until you clear the filter editor.

[edDV]

Dark on the TV, or just the PC ?

Is there a software player that can shows DVD correctly on PC monitor ?
ATI and many graphics cards have very fancy gamma/luminance profile setup, do those help ?

PowerDVD does a credible job even when feeding out off a graphics card to the TV. I wouldn't be recording that output though.

This is a key issue in making a HTPC system work. Video is YUV 16-235 with TV gamma. Clueless geek computer programmers think it is all about a linear 1Kx1K 24bit RGB frame buffer that they were taught in ComSci 101.