• DVD Authoring

  IRE Levels for DVD

  Posted by Onq Film on September 16, 2005 at 6:40 pm

  My client has still frames within a DVD presentation. There are matching stills used as menus throughout the presentation. My problem: The menus are maxed out at full RGB (white – 255). When I use the similar stills as part of the DVD footage, and had to ramp their levels down, and even at 115% IRE, they appear much grayer than the menus.

  What is the max IRE levels for a still used in footage? 90% of the area of these stills are white….so it affects virtually the entire screen.

  Marty
  OnQ Film

  Gary Hughes replied 20 years, 10 months ago 3 Members · 2 Replies
• 2 Replies

• 

  Bill Stephan

  September 16, 2005 at 8:16 pm

  Your white level in the artwork needs to be RGB 235 maximum, which equals 100 units of luminance in NTSC video.

  Bill Stephan
  Senior Editor/DVD Author
  USA Studios
  New York City
• 

  Gary Hughes

  September 22, 2005 at 2:15 pm

  Just a tip. I’ve had to mix quite a few photos and photoshop created graphics with real video on a project where white was the theme for all the product shots and graphics. I simply created a photoshop action that included only a “levels” adjustment. Then I used the automate function to batch the levels adjustment to entire folders of pics and graphics. I knew the whites were 255 and blacks were 0 on all the pics and graphics so I simply set the levels to max white (in my case I was matching 90 units so it was 229. In your case, you’ll want the full 100 units for max whiteness so you’ll use 235), and I also set the black to 16. 235RGB Max and 16RGB Min are broadcast safe for NTSC video.

  Thanks,
  Gary

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