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Why does my image flicker/blinks while i grade

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Giannakis OmirousWhy does my image flicker/blinks while i grade
by on Oct 21, 2012 at 12:29:01 pm

Hey i have this constant problem with my Color 1.5. I am working on a MBP Snow Leopard 4GB. While i change any value (grade) on the image it keeps flickering while i do that. I cannot work properly since i cannot see my image clear real time while i am grading. Any ideas of what the issue might be?


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Shane RossRe: Why does my image flicker/blinks while i grade
by on Oct 21, 2012 at 11:40:27 pm

What IO device are you using? Connected to what monitor? And what format (ProRes, XDCAM, HDV??) are you grading?

Shane
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Read my blog, Little Frog in High Def


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Giannakis OmirousRe: Why does my image flicker/blinks while i grade
by on Oct 22, 2012 at 10:59:32 am

I am doing a fairly simple edit. I am working on my MBP (no external monitors). The clips are HDV format. I start wondering if my MBP graphics card RAM (512MB Nvidia gt 560M) is not enough.


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Joseph OwensRe: Why does my image flicker/blinks while i grade
by on Oct 24, 2012 at 9:12:37 pm

Probably a combination of factors, then. HDV, while nominally supported in COLOR is a Long-GOP codec, which means only every 15th frame is real. Every other predictive or bidirectional frame (the other 14) has to be computed in order to be displayed. You can see how a laptop's resources might be stretched to satisfy this demand.

Another point is that very few operators were ever able to build large, fast enough systems to enable 'real-time' playback of anything higher than Standard Definition media. Garden-variety MacPros were usually able to hit 16-18 fps with ProRes with a couple of corrections applied -- down to 2-3 fps if there were any other operations like blurs or noise reduction.

jPo

"I always pass on free advice -- its never of any use to me" Oscar Wilde.


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Giannakis OmirousRe: Why does my image flicker/blinks while i grade
by on Oct 29, 2012 at 11:19:50 am

Hey Joseph. Thanks for your reply. I have tried other formats in Color and the problem is still there. The problem is not just in playback. It happens even when i grade a freeze frame. Hmmm..can't get my head around of what the problem might be. I am afraid i have to switch back to my color grading plugins.


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Joseph OwensRe: Why does my image flicker/blinks while i grade
by on Oct 30, 2012 at 4:03:36 pm

Or try Resolve Lite from Blackmagic Design.

jPo

"I always pass on free advice -- its never of any use to me" Oscar Wilde.


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Giannakis OmirousRe: Why does my image flicker/blinks while i grade
by on Oct 31, 2012 at 8:40:45 pm

In an ideal world that would be great but you can't import xml in resolve lite. The option is grayed out. Thats what makes it a great teaser!


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Joseph OwensRe: Why does my image flicker/blinks while i grade
by on Oct 31, 2012 at 9:26:35 pm

[Giannakis Omirous] "The option is grayed out."

That doesn't strike me as being right. XML import is common to all the versions.

jPo

"I always pass on free advice -- its never of any use to me" Oscar Wilde.


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Giannakis OmirousRe: Why does my image flicker/blinks while i grade
by on Nov 2, 2012 at 9:28:21 pm

My bad. If you go on the 'File' tab you see the option for the 'Import XML' grayed out. But you can easily do that from the Media pool. Thank you for your advice


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Joseph OwensRe: Why does my image flicker/blinks while i grade
by on Nov 7, 2012 at 12:31:20 am

[Giannakis Omirous] ". If you go on the 'File' tab you see the option for the 'Import XML' grayed out."

It should be an option in the Conform pane...

jPo

"I always pass on free advice -- its never of any use to me" Oscar Wilde.


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