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Saad Khan
Saad Khan
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FLICKER IN HIGH CONTRAST AREAS Premiere CS5.5

Jan 1, 2012 4:38 PM

Hi,

I am getting video flicker in high contrast areas of my videos. I recently posted up a discussion to get the correct sequence settings and that has worked miracles...

Here are the links to my previous discussions...

http://forums.adobe.com/message/4092910#4092910
http://forums.adobe.com/message/4102131#4102131

Now, my footage is looking great but when I play it back on a TV in DVD format, areas with detail, such as... Details on an Indian wedding dress, trees, backgrounds with distinct dark and light shades all flicker. By he way, I've slowed the footage down to 30%.

I've already read some posts...

http://forums.adobe.com/message/3889344#3889344#3889344
http://forums.adobe.com/message/3808039#3808039

I tried reading others and looking for them but didn't find the problem or resolution specifically.

I have already tried right clicking the footage, going to field options, then clicking flicker removal, but when I play it back the picture is good until the camera pans, and that's when you can see he picture jumping or jittering.

Ot sure if you need these details but here they just incase.

I use windows 7 64
Premiere CS5.5

I read about the temporal smoothing, but also read that it doesn't work in manual mode of the shadow/highlight effect.

 

Below are some images of my sequence and project settings + clip info

 

sequence setting.jpg

 

clip info.jpg

effects used.jpg

1867 Views   10 Replies   Latest reply: Ann Bens, Jan 27, 2012 3:31 AM
 
Replies
  • Jim Simon
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    1. Jim Simon,
    Jan 1, 2012 6:27 PM   in reply to Saad Khan
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    Given the rescaling and the reduced frame rate from the original footage, this is not unexpected.

     
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  • Saad Khan
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    2. Saad Khan,
    Jan 2, 2012 6:31 AM   in reply to Jim Simon
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    Hi Jim,

     

    Thanks for the reply. If my output is DVD, how can I best export without rescaling and changing the frame rate? Can you suggest ways to minimise hat flickering?

     

    I've seen editors edit footage from the same camera and it comes out perfect. However they use final cut pro and can't really advise me.

     

    Thank you

     
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  • Ann Bens
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    3. Ann Bens,
    Jan 2, 2012 8:50 AM   in reply to Saad Khan
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    You are not changing framerate just the scaling: hdv to sd.

    However reducing the speed of a clip could be the cause. Try even numbers like 50% or 25%.

    Have you tried a different tv?

     
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  • Jim Simon
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    4. Jim Simon,
    Jan 2, 2012 1:44 PM   in reply to Ann Bens
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    reducing the speed of a clip

     

    Sorry.  That's what I should have said instead of changing frame rate.

     
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  • Saad Khan
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    5. Saad Khan,
    Jan 3, 2012 5:31 AM   in reply to Ann Bens
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    Hi Ann,

     

    I've tried a different TV (2 different TVs) and the results are a a little less flickering but the flickering is still there. I also checked the speed and it was at 45%. I then went ahead and changed the speed duration to 25% and then did another export at 50% speed duration as well. I found that the picture was a little steadier but the flickering in high contrast areas were still the same.

     

    I also did another export with the same settings,  'speed duration' - 45%, 25%, 50% with Flicker Removal in the field options and in the steady shots it was great but if the camera or objects were moving then the picture jumps. Would you have any more suggestions I could try?

     

    Was 45% speeed duration then the wrong speed to choose?

     
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  • Saad Khan
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    6. Saad Khan,
    Jan 3, 2012 6:06 AM   in reply to Ann Bens
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    Actually,

     

    I just tried another project and I checked the speed duration and it was 35%. After I changed it to 25% the video looked a lot smoother. Does this sound like I'm on the right track? However, flicker in high contrast areas was still there. The exact same footage was edited by another company and there was no flicker, however, I will say that they used another system entirely. They wouldn't give me too much info other than they were'nt using Premiere.

     
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  • Saad Khan
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    7. Saad Khan,
    Jan 26, 2012 5:48 PM   in reply to Saad Khan
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    Someone has suggested to export to h.264 first and then to Mpeg DVD.

     

    when exporting from a timeline with HDV footage 1440 x 1080 (1.333) 25fps, to Mpeg DVD 720 x 576 25fps, then it's compressing the video heaps and it would be better to export to h.264 first.

     

    This is what a friend suggested and I'm just posting it to see what you guys think.

     
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  • Saad Khan
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    8. Saad Khan,
    Jan 26, 2012 5:55 PM   in reply to Saad Khan
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    Also, Ann suggested I use even numbers when I slow motion.. e.g. 25%, 50%.   So would using 35% and 45% be incorrect?

     
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  • Harm Millaard
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    9. Harm Millaard,
    Jan 27, 2012 12:33 AM   in reply to Saad Khan
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    Someone has suggested to export to h.264 first and then to Mpeg DVD.

     

    Bad idea. By encoding to H.264 you lose quality. Then encoding to MPEG2-DVD you lose quality again, so you have lost much more quality than by encoding only once. In addition, you lose time.

     
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  • Ann Bens
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    10. Ann Bens,
    Jan 27, 2012 3:31 AM   in reply to Saad Khan
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    Agree, bad idea.

     

    Try Premiere's CC on the slomo's instead of BCC.

     
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