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William_C00
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White Gauze-like Opaque Layer Over Image in CS4

May 9, 2012 12:11 PM

Tags: #avchd #image_quality #adobe_premiere_pro_cs4

Hello all,

 

I recently switched to a Canon Vixia HF G10 camera.  I have recorded some clips using FXP and pf30 settings (although the manual says that pf30 is actually recorded as 60i).  When the clips are ingested into PP I view them in a sequence using the AVCHD 1080p30 preset.  When I drag a clip to the timeline and play it, it has a white semi-opaque gauze-like mask over the image.  It's like looking at the frame through a white screen door.  When I play the clip it looks perfect but as soon as I stop or frame advance the mask appears.  I have tried using NeoScene to convert the .mts files to .avi and then importing the .avi clips to PP but the same thing happens.  Can anyone tell me what's going on and, more importantly, how to stop it.

 

Thanks in advance,

 

Bill

768 Views   8 Replies   Latest reply: Ann Bens, May 15, 2012 2:49 PM
 
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  • John T Smith
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    1. John T Smith,
    May 9, 2012 2:41 PM   in reply to William_C00
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    >using the AVCHD 1080p30 preset

     

    If I understand you, why are you putting interlaced video into a progressive setting?

     

    When you import, before you do anything to the video, is there a red line over your timeline?

     

    If you do have an immediate red line, your project setting is wrong

     
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  • Ann Bens
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    2. Ann Bens,
    May 9, 2012 3:05 PM   in reply to William_C00
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    Go to the Project Window and interprete all your footage as progressive.

    Then drop it in a progressive timeline.

    See if that will get rid of the white haze.

     
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  • William_C00
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    3. William_C00,
    May 10, 2012 3:56 PM   in reply to William_C00
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    John and Ann thanks for the quick responses.  Ann, when I changed the "Field Order" option from from "Use Field Order From File"to "Conforms to No Fields (Progressive Scan)" the white mask went away.  That's great progress, thanks!  Now I notice a jagged edge (sort of a sawtooth pattern at the boundaries between areas of moderate contrast, for example on the edge of an arm against a beige chair or a black dress sleave and the arm.  These disappear when the clip is stopped but that zzzzzzzzzzzzzzzzzzzzzzz between the two contrast areas comes back when the clip is played.  Any thoughts on that would be helpful.

    John, there is no red line over the time line. The reason I chose 1080p30 is that the camera says that it is records 1080p so in the AVCHD presets the only choices are 1080p24/25 (anamorphic and non-anamorphic) and 1080p30.  Are you suggesting using a 1080i preset such as 1080i30 (60i)?  I may give that a try this evening.

     

    The camera can also shoot true 24p progressive.  I suppose the larger question is, given this HD camera (Canon HF-G10) what combination of camera settings and PP sequence settings will give me the highest quality video.  If either of you have experience with this or similar cameras I would love to hear your suggestions.

     

    Thanks again,

     

    Bill

     
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  • John T Smith
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    4. John T Smith,
    May 10, 2012 5:03 PM   in reply to William_C00
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    >(although the manual says that pf30 is actually recorded as 60i).

    >reason I chose 1080p30 is that the camera says that it is records 1080p

     

    Well... which setting did you use... progressive or interlaced?

     
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  • Ann Bens
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    5. Ann Bens,
    May 11, 2012 1:56 AM   in reply to William_C00
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    The chose the right setting 30p as the camera is producing progressive footage in the pf30 mode.

    The preview is but a preview, did you set it to highest quanlity?

    What is the final destination of the footage? BD or DVD or web or ....

    Are the jaggies also present in the final product?

     

    You might want to read this about progressive canon camera.

    http://provideocoalition.com/index.php/atepper/story/empsf8217s_missin g_workflow_em_part_2_the_canon_xa10_camera/

    http://provideocoalition.com/index.php/atepper/story/psf8217s_missing_ workflow_em_part_1_benign_psf_versus_malignant_psf/

     
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  • William_C00
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    6. William_C00,
    May 11, 2012 11:46 AM   in reply to John T Smith
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    John.  I'm not sure which setting you are referring to -- camera or PP sequence.  In the camera I selected PF30, which says, "shooting at 30 frames per second progressive." But with at footnote that says "recorded at 60i."  I am not sure what the difference between shooting and recording is.  The only thing I can gues from some other technical comments I've seen elsewhere is that the .mts file contains a 30p image wrapped in  a 60i container.  On the PP side, as I said I chose the 1080p30 preset.  I went back and created a new sequence and chose 1080i30(60i) and the results are much the same as with Ann's suggestion to set Interpret Footage -- the white mask is gone but there is a jagged edge in playback.

     

    Ann, This will uinitially be rendered to a DVD but it is possible that i might also need to render it as BD.  I haven't rendered it yet because it takes a long time and the quality hasn't been good enough to warrant rendering and burning.  I have another option at the camera level but it doesn't help me with the existing footage.  I can record at true 24p.  That will produce 24p wrapped in a 60i container.  I can use Neoscene to unwrap it and either preserve the 24p or convert it to 30p. I don't know if that would make a difference or not.  I'll definitely check out those links.

     

    Life was a lot simpler with the old HDV cameras from which you could import directly into PP and I'm still trying to learn what works and what doesn't with these .mts files so I appreciate the help!

     
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  • William_C00
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    7. William_C00,
    May 15, 2012 1:39 PM   in reply to William_C00
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    Ann, Thanks for the links. They were very helpful. I understand much better now what is happening.  I also found some links on a Canon forum that discuss the pros and cons of shooting in pf30 vs 60i.  I'm still puzzled by the jaggies, though, and will do some test recording at 60i just to see if the problem persists, although I don't really want to shoot at 60i.  Any other thoughts that you have on the jaggies would be appreciated.  Bill

     
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  • Ann Bens
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    8. Ann Bens,
    May 15, 2012 2:49 PM   in reply to William_C00
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    The only way to get rid of interlaced artifacts is to deinterlace.

     
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