DivX's are too dark. Help!

[valnar]

All my DivX 5.02 creations from DVD sources are coming out too dark. I have to jack up the overlay brightness on playback to see anything and it washes out the darks and colors by doing so.

I am using the latest Gordian Knot.

I played a little with the AVS file and tweak(bright=?) but I can't find the magic number or combination to restore it correctly.

Since I've done this multiple times, I assume all my videos are offset darker by the same amount. Has anyone "tweaked" this number (pun intended) to the exact amount of darkening done by the conversion to DivX? Or is there another solution?

Thanks,
Robert

[OvERaCiD23]

Are you sure it's an encoding problem? Is your monitor setup correctly? Is the DivX playback filter set to default for brightness? I've never heard of an issue concerning brightness when using the GKnot package (AviSynth, DVD2AVI, VDub). You shouldn't have to touch brightness settings before encoding. Maybe try reinstalling DivX5 to see if that helps.

[valnar]

I think its a really dark source. That may be it. I tried another DVD and it works fine.

Thanks. My bad.

[hug0b0ss]

I've done alot of encoding.. and i have found that most divX encodes will come out darker than the original DvD.

I use the Luminance filter in DVD2AVI to make a slight alteration before i save the project.

Try setting it somewhere between +10 and +15.. depends on your personal taste.. but it does help to lighten some of the darker scenes in any rip...

good luck..
Peace !

[valnar]

AH, so it's not just me! Which do you adjust, the Gain or Offset, to make it brighter??



Originally posted by hug0b0ss
I've done alot of encoding.. and i have found that most divX encodes will come out darker than the original DvD.

I use the Luminance filter in DVD2AVI to make a slight alteration before i save the project.

Try setting it somewhere between +10 and +15.. depends on your personal taste.. but it does help to lighten some of the darker scenes in any rip...

good luck..
Peace !

[hug0b0ss]

AH, so it's not just me! Which do you adjust, the Gain or Offset, to make it brighter??

Alter the Gain setting and leave offset alone... usually i use +10 to +15.. and you will see quite a difference.
But be careful you don't lighten it too much..already bright movies will become white-washed.... (too much light)

Peace!

[valnar]

Any idea of how to do the same thing with AVISynth? I'm trying to figure out the levels command to no avail.

I use DoitFast4U for extracting my VOB's (I know, made for DVD, but works for DivX too!) and it's DVD2AVI .d2v file creation is automated.

Robert

[Iznogoud]

you can open the .dv2 file in notepad and modify this line:
"Luminance=128,0", 128 is default for Gain, 0 for offset. Just put in
"Luminance=140,0" or something, and watch it in Vdub to see the difference.

[valnar]

Oh cool. Thanks. Any idea of how much variance is needed to offset the darkening of Divx compression?


Originally posted by Iznogoud
you can open the .dv2 file in notepad and modify this line:
"Luminance=128,0", 128 is default for Gain, 0 for offset. Just put in
"Luminance=140,0" or something, and watch it in Vdub to see the difference.

[Iznogoud]

Not really. 135-145 gain maybe, don't think there is any absolute value. Try and see;)