Chroma Keyer Transparent PNG

superkennyk wrote on 6/20/2007, 3:12 PM

I'm having a problem with the Chroma Keyer. I'm trying to remove the white background of a logo, with the Chroma Keyer. However, only half of the background is removed, the other 50% is still completly visible.

I have never experienced this problem in the past. Anyone know what's going on?

Thanks,
Ken

Version 7.0e
Windows XP Professional
ATI Radeo 1900X (with the latest driver)

Comments

GlennChan wrote on 6/20/2007, 6:22 PM

Do you have FX bypass on?

Click the half-moon icon in the video preview window.

ScottW wrote on 6/21/2007, 6:07 AM

It sounds like your background isn't a uniform color. Try adjusting the low threshold of the key and see if that helps.

--Scott

bStro wrote on 6/21/2007, 6:20 AM

I'm a bit confused by the subject line. The second half suggests that you're using a PNG that has transparancy. If so, you shouldn't need to use the chroma keyer. But you migh have to change the alpha channel property (Right-click the event, Properties, Media tab).

Rob

superkennyk wrote on 7/3/2007, 9:26 AM

Thanks Glenn.

That fixed the problem. I have never came across that before.