Changing Pixel Aspect Ratio with Aperture

i was wondering if aperture has a way of changing the pixel aspect ratio from square to DI/DV NTSC or HDV. so far i am using photoshop to do that but would love to do it inside aperture.

Not that I'm aware of. Pixels are pixels to Aperture. You could always crop your images to the right aspect ratio.
If you're looking to burn photos to DVD perhaps iDVD or DVD Studio Pro could resize your images to the proper size.

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Change Pixel Aspect Ratio Once Already Started?

I've been having trouble with my video looking extremely blurry -- I thought it had to do with rendering but it looks the same rendered as it did before rendering. I think I figured out that it has to do with the pixel aspect ratio being too small (or is it frame size, or are those the same thing? It's all very confusing for me!). The final output for this video is YouTube, but it also looks blurry within Premiere (mainly when stretching the Program Monitor so I can see it larger).
I helped on a video a few months ago that looked perfect, everything was really crisp in Premiere (after rendering, that is) and when exported to YT. The pixel aspect ratio was 1920x1080 for this video, and the one I'm working on now is 720x480.
So, can I enhance the pixel aspect ratio of the video I'm working on now? If I'm not able to change the pixel aspect ratio once I've started the project, what would be your advice going forward?
Thanks, and please let me know if you need any more information!

You need to be sure your sequence setting matches
the frame size and aspect ratio of your source media.
To create a sequence that matches your footage, try this:
Once you have created a properly configured sequence,
you can copy (Ctrl+C) then paste (Ctrl+V) your already edited
clips into the newly created sequence.
Also:
Changing a Sequence to Match a Clip
http://www.video2brain.com/en/lessons/changing-a-sequence-to-match-a-clip
Create a sequence
http://help.adobe.com/en_US/premierepro/cs/using/WS3E67AF4C-B2A2-4f04-90B4-F8CCFB74B144.ht ml#WSd79b3ca3b623cac941d41a681247d1f35a4-7fff
What's the best export format or codec?
http://www.video2brain.com/en/lessons/whats-the-best-export-format-or-codec

Change pixel aspect ratio

Hi all,
My school requires me to produce all my videos in a format of 768px by 576px, square pixels, PAL format. I need to know how to change the pixel aspect ratio to 768x576 with the standard PAL format and square pixels. I can see that when you start a project you can set the size, but the boxes that contain the pixel size are shadowed out and I can't select them to change them. I have also tried to modify the project after it was created, using project settings and sequence settings, but again, I was not able to select the boxes that included the pixel aspect ratio.
Please help soon, as my project is due within hours.

My source material is 768x576 animations from Maya. The output needs to be .avi format, but it's not going onto a DVD or a DV tape or a web video, it just needs to be uploaded to my instructor's computer.
I am trying to export a file with the correct aspect ratio now. I set the output to codec=none, and changed the aspect ratio to 768x576. It seems unable to output the file, as I have tried four times and it has given me an error each time. Is a codec necessary? Is that what's freaking it out?
Also, the final video will only be 2:28 long, and I have set the scratch disk to a drive on my computer that has 78 GB free, so I hope it is not running out of processing space.
Thank you for your help and patience with this problem. I'm not sure I get the reason for the format myself, which is probably why I'm having trouble explaining why this is so important. However, my instructor told us numerous times that we absolutely had to have a final file that was 768x576, so I figured I had to make every effort to get it done that way.

Interpretation rules not working; can't change pixel aspect ratio

Hi,
I'm following the instructions on the Adobe help site here...
http://helpx.adobe.com/premiere-pro/using/aspect-ratios.html
...so that I may use custom pixel aspect ratios in the interpret footage dialog box.
Unfortunately none of my changes to this file have any effect, and I'm clueless. These are cinemaDNG sequences and I'd like to keep working with them raw, otherwise I would take the time to export them and stretch them en masse through AE.

Hi Kevin, a mix of BMPCC and 5Dmk3 Magic Lantern. ML raw at 60p has a non-standard PAR, most of my footage is shot in this format. I need 0.65, the closest is 0.9091. I was disappointed at first to find no ability to manually enter the value, then elated to find the Interpretation rules text file, then disappointed again to find it doesn't work...hoping this ends well!

Changing photo aspect ratio with QT 7 Pro

Can I use QT 7 Pro to change the aspect ratio of my iPhoto pictures so they can be used in HD video?
David

I guess it would be easyier for me to purchase Graphic Converter to convert all my JPEGs to 16:9 ratio to be used in Final Cut Express.
Again, this depends on what you are looking for in an application. I personally have never used Graphic Converter. If, for instance, it is able to batch process your photos, then it might be worth purchasing if that is what you are primarily interested in. However, any graphic application can change the aspect ratio of your photos—including Preview which, I assume, is already installed on your system. In fact, I recommend you try this work flow with a few sample photos to be sure it is the aspect ratio you really want to change. (I.e., most cameras use a 4:3 or 3:2 aspect ratio and changing the aspect ratio for the frame will introduce a distortion to the photograph subjects.) The more normal approach is to crop the photos to the desired aspect ratio in iPhoto and export the customized photos from iPhoto or import the customized photos directly into the target application.
In any case, simply open one or more photos in Preview, select a photo, open the "Tools>Adjust Size" option, deselect the "Scale proportionately" option, and enter the desired HD dimensions.
Example... This
becomes this...
In this case making the subjects appear fatter than the actually are which usually does not go over well with the women in the picture.

Changing pixel aspect ratio during cropping (LR3.2)

When I crop sometimes the pixel aspect ratio changes here. I.e. the pic get stretched in horizontal or vertical way/or compressed. Any body seeing this also? After some time it does change to normal, but it makes cropping rather difficult when in a hurry.

I'm not sure I understand your problem, but I think what bothers you is the technique that has been in place in LR2 already for switching between landscape and potrait format of the crop, which in LR3 can be acomplished by the X keyboard shortcut.
Moving your mouse horizontally or vertically on a locked aspect ratio, the format will change from portrait to landscape or vice versa. To enlarge or diminish the size of the crop, you have to move the mouse diagonally.
Beat Gossweiler
Switzerland

Correcting pixel aspect ratio with Publish settings

Same old, I know. I'm designing and producing a
Flash site using a Mac, but it will be viewed on a large
touchscreen (1366x768) driven by a PC. The vectors look fine when
going from the Mac 1.1 pixel aspect ratio to the Windows 1.0
display, but the photos look degraded and squashed vertically.
Could I fix with the Publish settings ... such as html- publish at
100% width, 99% height? I can't test easily because my pc's have
such fuzzy old displays, I can't see a thing. Flying blind. The
only time I see how awful it looks on a good PC display is when I
review the work to the client on the client's own PC...ouch.

In Premiere, you can right click on your footage in the Project Bin. From the context menu, choose Modify then Interpret Footage. In that dialog box, you can tell it to conform the pixel aspect ratio to 16:9.

How do i change pixel aspect ratio of an image in elements9?

My camera only shoots in one format ratio, i would like to change images to 2:1, or 1:2. Without cropping or letterboxing. (Hence i think it is the 'pixel' aspect ratio i need to alter, not the 'picture' aspect ratio). Is this possible in elements or is it something else i can't do in elements; and just another reason why i should've bought CS5 instead??

You can use a custom crop and Elements will automatically re-sample the pixels. You won’t get any distortion but you will sacrifice part of the image.
In this example the original image was 3872 x 2592
I divided 3872 by 2 and changed the height in the options bar to 1936
Part of the sky had to go but still a pleasing result.
Result
You can position the crop shield anywhere. e.g. depending on the original you may want to loose part of the top or bottom. Simply move the image around to get the best composition then hit the green checkmark.

DVCPRO HD 720P: pixel aspect ratios with still images from Final Cut

I am currently trying to get still images from a trailer I am working on with Final cut pro. The footage is DVCPRO HD 720P 24pn and the interlacing and pixel aspect ratios have been giving me a lot of trouble in photoshop. I am able to convert the PAR but it is for preview purposes only...? I need the file to be saved with the converted PAR. How do you do that???
Also, the de-interlacing filter on photoshop doesn't seem to help the quality of the photo.
Anyone have any ideas?
I have searched and searched and only found somewhat related questions, so maybe I am the only one trying to do this...

Why are you doing interlace if you have 720p?

Yikes! Need to change pixel aspect ratio.

Hey folks, please be gentle, I'm really new to After Effects.
I created a fairly large composition in AE CS3. The dimensions are correct for the ultimate deployment (1536 x 680) but I've just discovered that my pixel aspect ratio was set incorrectly. I have it set to "D1/DV NTSC Widescreen (1.2)" and it needed to be set to "Square Pixels." So when I preview my project there are black bars top and bottom. When I change the pixel aspect ratio of my compositions to "Square Pixels" it literally cuts off my content on both sides. Gah. I don't have the time to rebuild the entire project!
Any suggestions? All help is much appreciated. Thanks!

Mylenium, thank you! Yeah, pixels are pixels, darn it!
Please let me just clarify ...
In my Render Queue I go to Output Module Settings and choose something like "JPEG Sequence" and render it out. (Will that make, like, a million individual files? I've got 3 compositions and they're all about 3 minutes long.)
Then create a new composition that is the correct size AND pixel aspect ratio.
Then import whatever was rendered out.
Sorry for the need for hand-holding!

Stretch Pixel Aspect Ratio with AME CS5?

I was given some videos that were in the wrong pixel aspect ratio. The videos are 4:3 and they were supposed to be 16:9.
Can I stretch the videos in AME? I tried to adjust the resolution, but when I hit the Output tab to preview the video, it gave me the same 4:3 video withblack bars on the sides.
(I also have Premiere Pro CS5, and if this could be done in Premiere, then I'm willing to do that. But I can't seem to be able to create a 16:9 sequence that is 320 X 180.)

In Premiere, you can right click on your footage in the Project Bin. From the context menu, choose Modify then Interpret Footage. In that dialog box, you can tell it to conform the pixel aspect ratio to 16:9.

How do I change a pixel aspect ratio from HD 1920x1080 frame rate 25 to NTSC 640x480 frame rate 29.97

I upload files to a tv channel, but for them to air, they need to have a NTSC 640x480 pixel aspect ratio with a frame rate of 29.97. I currently have a .mov file HD 1920x180 frame rate 25. I deleted the original unedited files so all I have is the .mov file. I need to make my file NTSC 640x408 frame rate 29.97
Thanks please answer ASAP

If you aren't entirely happy with the image quality you get from this in FCP. consider buying Compressor ($49). Down-converting from HD to SD often introduces artifacts. Compressor has a resize filter that does a good job of minimizing those artifacts.
Russ

Still image pixel aspect ratio wrong in exported video (but correct in Premiere renders)

I've saved a targa still image from my footage and added it to the bin. It's properties show as follows:
Image Size: 1440 x 1080
Pixel Aspect Ratio: 1.3333
This correctly matches my sequence settings as I'm working with 1080p widescreen footage.
The image appears as expected in the Program window both before and after rendering previews. However, once I export my sequence as a video file, the still image is squashed (displaying incorrectly):
A work around would be to stretch out the still to a width of 1920 in Premiere so that the export displays it back at its normal aspect ratio - which works - but I don't understand why I should have to do this.
The other solution I found was to go to the bin and 'Modify > Interpret Footage' and although "Use Pixel Aspect Ratio from File" already shows the correct settings, to actively reset it (to the same pixel aspect ratio) with the 'Conform to' option:
This works too.
Surely a bug?
(using Premiere Pro CC)

Thanks for the quick reply. But then why does the still's properties (in my bin) show the pixel aspect ratio as 1.3333 (not square pixels, 1.0) and should it not appear incorrectly in both the preview renders and the exported video ? This seems inconsitent to me.

Problem with pixel aspect ratio

I searched but found no answer.
I have several Maya renders which are at a resolution of 720x486 and a pixel aspect ratio of 1.2. I composited my image sequences in after effects interpreting that 1.2 pixel aspect ratio. I then exported a quicktime movie using no compression at 24fps at a resolution of 720x480 NTSC 16:9.
When I import this video into Encore 2.0 It comes out as full screen. Not only is it full screen, but when I preview the dvd, the video is blurry with scan lines and black bars on the left and right side. The menu however, is widescreen (I used a template as a test)and perfectly clear. I tried to select the asset and go to file>interpret footage, but this option is grayed out. I have also tried exporting an avi from after effects and importing that into Encore. It still will not let me set the pixel aspect ratio. I have read that After Effects does not embed the pixel aspect into exported videos. I have also read that I should export mpeg2 videos for use in Encore, however I do not see this option in After effects or Premiere Pro.
What am I doing wrong? Any help is appreciated. If I left any information out that could be useful, please let me know.

(Ack, for some reason I typed "DVI" and really meant "DV")
Thanks for the response. I don't really care if I preserve the 4:3 aspect ratio. Or does my GL1 not use square pixels and I just never noticed it? It's strange I've never seen this problem until FCE HD.
I have tried exporting a number of ways from FCE, including Export > QuickTime Movie... and Using QuickTime Conversion... For the latter, I typically set it to export as 720x480. I always export as video. The final export contains video clips as well as still images within the video.
I am a bit embarrassed having to ask this question. I've been working with still images in photoshop for over a decade and worked a lot with video during that time as well.
Thanks again.

Has anyone else encountered a problem with poster frames not recognising a video's pixel aspect ratio

I'm discovering a strange effect with some of the .mp4 videos I've upload into iBooks Author. They're Pal SD 4:3 .movs with a 16:9 pixel aspect ratio and they play out fine on the iPad. However the iBooks software seems to be ignoring the pixel aspect ratio of the poster frame. This leads to the situation.
1) When I drag my video into iBooks author all looks good - the video is 16:9 and if I choose to set a poster frame (or leave it at default) it looks 16:9 in the iBooks Author.
2) I preview my book and it opens in iBooks on the iPad. But now the poster frame aspect ratio is 4:3
3) I click on the video to start playing and it immediately jumps to 16:9 aspect ratio and plays out fine.
4) If it scroll down a couple of pages and then scroll back the video poster frame has now reset itself to 4:3
This sounds like a bug to me. Anyone else had it? Do you know if it's possible to report bugs without having a Developer licence?
Thanks for any help
Rob

While there is no formal bug reporting method similar to what devs have w/apps, iBA does have a 'Provide iBooks Author Feedback' menu item.

Changing Pixel Aspect Ratio with Aperture

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