What Luminance level should I used with CCE?

[mlong30]

Hi All,

I'm creating my first DL DVD, using SonyVegas, and DVDLab with CCE. When I open CCE, I have a choice of using 16-235 or 0-255. I've been using 16-235 for TV Playback, but would like for my customers to use it on their computers as well. Are there any standards in this area? What are the commerical DVD using?

By the way, my video is NTSC, and interlaced, in SonyVegas.

Thanks.

Matt

[tinker]

I do not think most monitors or TV are able to display pure black or white so either setting will do. On top of that, if your video is from DVD camera, than 0-255 info will not be there to begin with.

[mlong30]

On top of that, if your video is from DVD camera, than 0-255 info will not be there to begin with.

My video consist of 4 seperate videos.

Video1 Source - Sony DV Cam
Video2 Source - VHS Capture
Video3 Source - VOB Files/DVD
Video4 Source - Pictures/SlideShow from Canon 20D camera.

So would it just be best to use 16-235, in this case?

Thanks.

Matt

[jagabo]

If your source is YV12 or YUY2 it doesn't matter which you use -- the setting only effects the conversion of RGB to YV12 by CCE.

If your source is RGB you should use the 16-235 setting. Except in the specific case where you intend to create blacker-than-black and whiter-than-white -- as when making black level or white level video test patterns from BMP images. Or when you know your RGB source has luminance already in the 16-235 range (you usually have to go out of your way to get this).

In short, use the 16-235 setting (which means: convert incoming RGB sources from luminance levels of 0-255 to YUV luminance levels of 16-235).

[mlong30]

If your source is YV12 or YUY2 it doesn't matter which you use -- the setting only effects the conversion of RGB to YV12 by CCE.

If your source is RGB you should use the 16-235 setting. Except in the specific case where you intend to create blacker-than-black and whiter-than-white -- as when making black level or white level video test patterns from BMP images. Or when you know your RGB source has luminance already in the 16-235 range (you usually have to go out of your way to get this).

In short, use the 16-235 setting (which means: convert incoming RGB sources from luminance levels of 0-255 to YUV luminance levels of 16-235).

My source with all the videos added is RGB because I'm rendering from Sony Vegas 7d which only works in RGB colorspace. I turned off the Luminance feature in Vegas and will just let CCE do this for me.

Thanks!

Matt

[jagabo]

If Vegas can convert YUV to RGB and retain the luminance levels in the 16-235 range you should leave your video like that and use the 0-255 setting in CCE. This will prevent the loss of blacker-than-black and whiter-than-white portions of the picture (which most video has a little of, especially the latter).