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

Similar Messages

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.

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.

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!

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!

Change in anamorphic pixel aspect ratio numbers?

http://support.apple.com/kb/HT1796
This gives LiveType anamorphic number for DV NTSC as 1.19 as the pixel aspect ratio. The number that has always been given prior to this is 1.25. They seems to produce exactly the same results when imported in Final Cut. No scaling or distortion takes place in either project file when composited in FCP. Why the change in numbers, and why do they both work?
Thanks.
All the best,
Tom

Tom, are you certain the NTSC value was given as something other than 1.19?
At least that's what it's always been according to an older Knowledge Base document link for the same issue, last modified date in 2004.

Changed H264 for Bly Ray settings to PAL, but "pixel aspect ratio" remains NTSC

I changed H264 for Bly Ray settings to PAL, but I can't change the "pixel aspect ratio" which remains NTSC. It remains grey and I can't find the way to unlock this.
What I miss?

It's a very strange behaviour. When I saw the template it was this way
Whereas, the preset put on the movie (in the batch window) became this way
Same of yours. I don't know why this happened... but I'm happy is the right way...

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

How can I change the aspect ratio of an image display

I am snapping a sequence of images and using imgPlot to diplay the images. However, due to my camera specifications [it's a Pulnix 9701 with Pixel Size 11.6μm (H) X 13.3μm (V)], the image I get displayed is elongated in the horizontal direction, i.e. if I snap an image of a square, I get a rectangle on my computer display.
How can I change the aspect ratio of the display on my computer? The only parameters I have seen so far just control what portion of the image is acquired or diplayed, but none actually changes the aspect ratio.
Thanks in advance for any help.

If you are using an analog camera, you can set the aspect ratio in MAX. This will correct for non-square pixels.
If you are using a digital camera, I don't think there is a way to fix it during acquisition. You could resample the image to correct the ratios, but that would be a slow, time consuming process.
One other possibility is that your computer monitor is in a mode which is not a standard 4x3 configuration. For example 640x480 and 800x600 are 4:3 ratios. 1200x1024 is not, which tends to distort your displayed images.
Bruce
Bruce Ammons
Ammons Engineering

CS5 Pixel Aspect Ratio Problems...

Hello All,
I am working on porting over an existing .mov file importer from Windows to Mac while also upgrading it from CS4 to CS5 (and also rolling in the creation of a hand-written 64-Bit QuickTime file handling library to boot, ouch).
In my current test bed I am having problems with certain 1920 x 1080 .mov files. Some 1920x1080 files that I have get imported properly, some files that I have get imported with the wrong aspect ratio. I have verified that both files should be displayed using square pixels and have also verified that when the selector is sent that calls SDKGetInfo8( ) that I am setting the following for **all** of the above-mentioned test files:
SDKFileInfo8->vidInfo.pixelAspectNum = 1
SDKFileInfo8->vidInfo.pixelAspectDen = 1
I have stepped line-by-line through SDKGetInfo8( ) and the stretched and non stretched clips seem to yield exact same traces through this function. However, the files that are being imported with the wrong aspect ratio, of course, preview in a stretched format. Also, in the informational area of the Source Bin, when the *stretched* clips are selected the information that is provided for these clips is:
NameOfTheStretchedClip.mov
Video, 1920 x 1080 (1.7778)
00:00:9:13, 23.976 fps
etc…
For the clips that aren't stretched, the (1.7778) is (1.0). I am not the biggest expert on the actual usage of Premiere, so I can only assume given the values displayed and the respective visual result of the clips when previewed that this value displayed in the UI is the pixel aspect ratio and not the frame ratio as the clip with (1.7778) is stretched and the clip with (1.0) is not, yet both are 1920x1080 clips. What to me is suspect is that 1920/1080.0 is 1.7778 and so somewhere for the clips that are being stretched the pixelAspect ratio values seem to be getting derived using the pixel dimensions and not the values vidInfo.pixelAspectNum and vidInfo.pixelAspectDen that are explicitly set to '1' as shown above.
Thus my question is, aside from setting in SDKGetInfo8() the following values:
SDKFileInfo8->vidInfo.pixelAspectNum = 1
SDKFileInfo8->vidInfo.pixelAspectDen = 1
Where else are the pixelAspect values supposed to get set?
Alternatively:
- During which other selector calls *CAN* pixel aspect ratio get set? As I mentioned, I am porting existing code, so perhaps these values are getting set elsewhere that I am presently unable to find.
- Is there some setting that might get set at the import of a file that says to derive the pixel aspect ratio from the pixel dimensions that might be getting triggered for the clips that are being imported as being stretched?
Thanks in advance for any help!
Josh

Hi Zac,
I am taking a look at this issue further with the aid of an additional engineer here that has more experience with QuickTime files.
First off, upon viewing the XMP metadata of the stretched file in the Metadata Viewer available inside Premiere, the Video Pixel Format is, in fact, listed in the XMP metadata as 1.78.
However, the time signature on the stretched .mov file, as listed in information of the QuickTime atoms, was 23976 / 1000. On a whim we used Dumpster to change the time signature to 24000 / 1001 to see what would happen. After altering the time signature in the Atoms of the file in this fashion, in Premiere the aspect ratio is now shown to be (1.0) in the source information in the Source Bin and the video is imported in the proper unstretched format (or - better stated - played back via our PlayMod in the proper unstretched format). However when viewing the metadata in the Metadata Browser in Premiere, the "Video Pixel Aspect Ratio" is still showing 1.78. This seems to confuse the issue further as now this time signature alteration in the Atoms of the QT file has fixed something and is now seemingly overriding the order of operations you mentioned as the XMP metadata still seems to list an improper format, yet everything else is seemingly behaving fine.
BTW - Clips with other time signatures don't seem to have this problem.
Any ideas?
Thanks,
Josh

Pixel Aspect Ratio used by Adobe OnLocation

QUESTION: What is the pixel aspect ratio used when AVI T1/T2 formatted files are generated?
CASE 1: After specifying AVI T2, recording video and importing it into Premiere 6.5 (With Matrox RT100) it says that PIXEL ASPECT RATIO is 0.889
and audio 48KHz/16 bit (so it needs rendering!)
CASE 2: After doing as above but with AVI T1 and importing the same way it shows that PIXEL ASPECT RATIO is 0.9 but audio as 32KHz/16 bit, although during recording in OnLocation is shows that audio is 48kHz/16 bit?
It there any way to get PIXEL ASPECT RATIO 0.9 and audio as 48kHz?
Are there any changes between AP 6.5 and Pro in AVI formats?
Or is it how Matrox card is handling those formats?

QUESTION: What is the pixel aspect ratio used when AVI T1/T2 formatted files are generated?
CASE 1: After specifying AVI T2, recording video and importing it into Premiere 6.5 (With Matrox RT100) it says that PIXEL ASPECT RATIO is 0.889
and audio 48KHz/16 bit (so it needs rendering!)
CASE 2: After doing as above but with AVI T1 and importing the same way it shows that PIXEL ASPECT RATIO is 0.9 but audio as 32KHz/16 bit, although during recording in OnLocation is shows that audio is 48kHz/16 bit?
It there any way to get PIXEL ASPECT RATIO 0.9 and audio as 48kHz?
Are there any changes between AP 6.5 and Pro in AVI formats?
Or is it how Matrox card is handling those formats?

Pixel Aspect Ratio bug in Media Encoder export

Having a weird bug in media encoder exports that I can't seem to figure out. I have a 1080p sequence with a mix of 1080p footage and PAL DV assets. The PAL assets have a pixel aspect ratio of 1.0940. When I format them in my Premiere sequence, I am able to scale them correctly and they look fine. When I export them directly from premiere to broadcast standards it's also fine.
However, when I try to export these sequences in Media Encoder via File->Export->Media-> Queue using the same exact settings (I'm using a preset), Media Encoder formats the PAL assets as if they have square pixels. Thus, half of the footage in my sequences gets horizontally "squished." Note that this does not happen for footage that natively has square pixels, such as my 1080p camera footage.
Has anyone encountered this bug? It seems strange to me that Media Encoder would treat items in a sequence differently that Premiere during export, I was under the impression they were using the same rendering engine... It's really a problem as I'm going to have to crank out multiple versions of this 48-minute film and not being able to queue those exports is going to be a huge headache.
Using latest version of CC 2014.1 (8.1.0).

Screenshot of Premiere Export (fills screen):
Screenshot of Media Encoder export: (notice the pillar-boxing)

How do I change the aspect ratio of source video in the event library?

I’ve imported video to iMovie 08 from a Canon Mini DV MD235 video camera. The video is recorded in widescreen format and plays back in widescreen when viewed from the iMovie event library (prior to doing any video editing). However, when I delete rejected frames from any particular video clip in the event library the video clip is automatically pillarboxed (i.e. switched from widescreen to 4:3 format). This squashes the video horizontally, stretches it vertically and leaves vertical black bars to the left and right of the video during playback. This automatic change in aspect ratio is occurring to the source video in the event library.
I’d be grateful for any help / advice on how I can convert the edited clips back to widescreen aspect ratio, so they display in the *event library* as they did when first imported into iMovie.

I don’t really want to clog up my hard drive with unwanted video and it’s easier to edit it from within iMovie.
Have you considered manually importing only portions of the clips you actually plan to use? Or, if you must import the entire clip, have you considered trimming externally in an application like MPEG Streamclip which will allow you to set frame level in/out points and then perform a "Save As..." operation that stores the select range of frames to an MOV file container retaining the proper flag?
Is there anything I can do from within iMovie to activate the 16:9 setting for these as yet unedited clips, so the same pillarboxing doesn’t happen?
Not sure what you mean by "unedited" here. If the files have been destructively split, the flag is gone and there is nothing you can do about it but re-compress. If you mean they are imported but as of yet whole and still contain their flags, then you have two options. The first is to edit non-destrctively within iMovie '08 and the second would be to do the trimming externally.
This second option is really fairly simple. Just close iMovie '08. Open MPEG Streamclip and load a clip you want to trim. Set your in and pout points, select the "Save As..." option, and store the files in the original Events folder with a new name. I would also recommend you perform these trims in their original time sequence so the "creation" date time groups (Finder attributes) are in time order also. When done with the loaded clip either delete it from the "Event" folder or move it to an archival location. When done with the last clip, close MPEG Streamclip, delete the Cache and Thumbnail folders from the Event folder, open iMovie '08 again, and go get a cup of coffee or tea while the files are re-thumbnailing. DO NOT DO THIS TO ANY EVENT WHICH CONTAINS FILES ALREADY USED IN ANY PROJECT. (I.e., this must be done before you start the actual project editing process.)
It seems odd to me that iMovie is doing this.
I suspect that as the application was originally written as an NLE, non-destructive, "by reference" application, the writers/updaters "overlooked" this facet when adding a "destructive" routine and did not provide for checks of this flag nor provide for copying it re-written segments.

Changing pixel aspect ratio during cropping (LR3.2)

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