-
Wierd “bands” on screen w/generated text
I am using some generated text in vegas, specifically credit rolls. The background color is set to be transparent – and solid color verdana fonts. I am overlaying text onto a background file I created.
Whenever the text is onscreen I see VERY slight “bands” of inconsistency in color on the background. When the text is not there – this does not happen. It appears this is occuring in Vegas!
Then last night I noticed when watching Adult Swim, and Text in the lower corner on MTV that they also had this slight “band” of off color.
For the Adult Swim, when they black the screen out and there is just plain white text “Adult Swim” in the middle of the screen if you look real close you can see a very thin band of black is slightly off from the rest of the black corresponding to the width of the text. This is EXACTLY what I am seeing happen in Vegas.
Any clues on what this is and why??????
Believe me – it is VERY SUBTLE!!!! But there.
-
5 Replies
-
Usually this happens when the blacks or whites are beyond legal limits. First, change any black values (including shadows) from 0 to 16.
Gary Kleiner
-
I am seeing it continue to happen with the background which is a MOV file (uncompressed) that contains an alpha channel & some resized/moving images – I tried putting the broadcast colors clamp on it in Vegas, and regenerating the MOV file in After Effects using a Broadcast Colors Clamp as well – in both cases . . . Same problem.
If I make my image a photoshop file w/Alpha Channel & do the motion in Vegas w/Broadcast Colors clamp – same thing – I see the slight bands.
Any other Ideas?
-
..and if you change the text values as I suggested?
Gary Kleiner
-
I double checked – yes I had some balck text that was 0-0-0-240, I changed it to 16-16-16-240 and I’m still getting it.
Might blue text at 0-0-150-240 cause it? Oh heck I’ll go change that to 16-16-150-240 and try again.
Funny thing is as the background resizes I can see the faint “strips” before the text is on screen.
Is there something that must be done with that instead?
-
Could it be your display monitor?
Good luck.
Dennis
Reply to this Discussion! Login or Sign Up