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1050x576 to 720x576px conversion results in awful quality

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Neill Cartlidge
1050x576 to 720x576px conversion results in awful quality
on Feb 15, 2013 at 11:36:50 am

Hi.

I have created footage in After Effects that is 1050 x 576px, Square pixels.

I need to burn this to PAL DVD so want to convert it to 720 x 576 at 1.46 ratio.

I dd this by creating a new comp that is 720 x576 at 1.46 ratio. Then putting my 1050 wide footage within it.

When I go on to render this out, the quality becomes awful and everything is blurred. Even set to Animation 100%.

What is the best way to convert square pixel footage to Pal without any quality loss?!

thanks in advance.


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Vishesh Arora
Re: 1050x576 to 720x576px conversion results in awful quality
on Feb 16, 2013 at 11:45:49 am

Neill

Upload a screenshot of Render Settings and Output Module settings. It would help to solve the issue.

Vishesh Arora
3D and Motion Graphics Artist
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Ht Davis
Re: 1050x576 to 720x576px conversion results in awful quality
on Aug 3, 2017 at 2:57:32 am

When you change your aspect ratio (PAR), the pixels change shape. This can create a blur, stretch or other problems when you are starting with square pixels and then changing them. Also remember you are downconverting. What you want to do first is downconvert to a squarepixel variant of the resolution. The pixels are rectangular in a 1.46 par. So your height would be 1, your width would be 1.46. Multiply 720 by 1.46. That's 1052. So now you are 1052x576. You see? Your Par didn't convert down, you blew it up in an odd way. You want to convert to a new PAR, find out the exact size of your video at a specific par. 1050\1.46 is just over 719... ...You want to use the 719 value, not 720. You'll need a custom size. Now, set up a sequence for 719x576, place your video. Set up another sequence for 720 if you want, and place the 719 into it, then scale to frame size. You won't have any more problem.


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