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Vegas 8 showing image too bright on finished video

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stantheman1976
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Joined: 20 Jul 2002
Location: USA

Post Posted: Aug 16, 2008 10:02 Posts Comp View users profile Send private message Reply with quote

http://www.mbbchurch.com/mbbcmedia/Announcements/Announcements2008-08-17.wmv

If you watch you'll notice numerous segments with a washouted logo in the backgroung. This is what the original logo looks like:
http://www.mbbchurch.com/mbbcmedia/WashoutLogo.jpg

On the finished video it is almost completely washed out. You'll notice it looks normal when it fades in and out. Any ideas why this might happen?

Edit:
Here's a screenshot of part of the original project. It shows up fine in the preview and looks normal while rendering but when the video is played back it's severly washed out and almost invisible.
http://www.mbbchurch.com/mbbcmedia/vegas.JPG


edDV
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Joined: 06 Mar 2004
Location: Northern California, USA

Post Posted: Aug 16, 2008 10:57 Posts Comp View users profile Send private message Reply with quote

OK, the video downloaded. The original "logo" looks washed out to me. Use more contrast for the logo. The text looks OK.
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edDV
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Joined: 06 Mar 2004
Location: Northern California, USA

Post Posted: Aug 16, 2008 11:14 Posts Comp View users profile Send private message Reply with quote

The wmv shows 0-255 scaling which is too hot for normal 16-235 video. This causes crushed blacks and clipped whites. I suggest you use your waveform monitor and keep graphics and text inside the zero (level 16) and 100 (level 235) limits. My project setting here is normal DV.


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Last edited by edDV on Aug 16, 2008 11:22, edited 1 time in total


edDV
Member


Joined: 06 Mar 2004
Location: Northern California, USA

Post Posted: Aug 16, 2008 11:21 Posts Comp View users profile Send private message Reply with quote

Also, don't trust the computer monitor. Video monitors have different gamma characteristics. I would monitor from the IEEE-1394 port through a camcorder or transcoder (like the Canopus ADVC) to see how it will look on a video display.

If any of the displays are normal NTSC TV sets, be sure to test with an NTSC composite TV* as well. NTSC encoding limits color space causing shifted or buzzing colors. In most cases, the NTSC TV limits the color palette for your project.

* connected to the camcorder or transcoder, NOT the display card.
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stantheman1976
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Joined: 20 Jul 2002
Location: USA

Post Posted: Aug 18, 2008 15:33 Posts Comp View users profile Send private message Reply with quote

I ended up importing a higher reolution version of the original logo, putting a white solid background behind it, and reducing the logo contrast to 15%. When I clamped the colors down the levels you suggested it works fine but it kills the whites and makes the image a mid level grey.

I'll link the original logo in PNG format below. Would you mind trying the same thing and see if you can get it to "legal" settings without killing the whites and letting em know what settings you use?

http://www.mbbchurch.com/mbbcmedia/MBBCRoundLogo.png


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