Pixel aspect ratio

[Richard Herd]

What is the footage? DVCProHD by any chance? Or did someone use Photoshop preset and accidentally set it to DVCProHD?

[Don French]

Footage? It is a JPG.

[Richard Herd]

[Don French] “I fixed the problem with Modify > Interpret Footage”

[Don French] “Footage? It is a JPG.”

So I guess there are two things.

1. JPG (or any still) that is in an NLE becomes footage.

2. Photoshop has presets for DVCProHD, which is 1.33 par. It’s useful to have that preset when you are working with DVCProHD timelines. If you’re working with square pixels or .9 pixels, then you can either do what you did (Interpret Footage), or open it in Photoshop and change the settings.

[Don French]

Thanks on the footage clarification. I am new to Premier and so am still learning. (NLE = non-linear editor?)

When I open the image in PS it appears correct (not stretched like it does in AP). Also, when I go to View > Pixel Aspect Ratio, Square is checked, which would seem to imply a PAR of 1.0. Am I missing something?

[Richard Herd]

[Don French] “NLE = non-linear editor?”

Yes.

[Don French] “Am I missing something?”

Not really. It is a pain. Welcome to editing. 🙂

In photoshop there are two check boxes in View.

— Pixel Aspect Ratio > (many options)
— Pixel Aspect Correction

You can mess with those to see what’s happening, in your particular image. It’s the only way to really “get it.”

Also go to Image > Size and see what those details are.

Is the image 960×720 (1.33)

or

Is the image 1280×1080 (1.5)

or

1920×1080 (1.0)

I assume you want a final image of 1920×1080 (1.0).

[Don French]

No help.

View > Pixel Aspect Ratio has Square checked and Custom Pixel Aspect Ratio has a Factor of 1.000, both of which are what I would expect but not what Premier seems to think about this image.

Are you using CS6? Because Image > Size in CS6 does not show anything like what you suggest. It shows Pixel Dimensions: 4.45M and entry fields for width and height in either pixels or percent. And Document Size with entry fields for Width, Height, and Resolution – but no PAR or anything else in parentheses.

My image is 1080 pixels high and 1440 wide.

[Richard Herd]

[Don French] “My image is 1080 pixels high and 1440 wide”

I think that’s a HDV image size (not DVCPro HD, sorry).

[Don French] “Are you using CS6?”

Yes. After Effects uses this nomenclature: 1920×1080 (1.0) which means Width x Height (PAR).

The PS crop tool is a good friend here. In PS, adjust the image so that it looks correct, then set the crop tool to 1920×1080 72 DPI and see what happens. Be sure to check the image size, too. Then save.

[Don French]

Well, as I said before, I don’t have a problem to solve at this point because I fixed it in AP. I was just trying to figure out how this happened to this one image and to none of the others I imported – and I still don’t know. As to cropping an image that is 1440×1080 to 1920×1080, I didn’t know that you could do that. It actually increases the canvas size – nice! Anyway, there is no need to do that, as AP takes care of centering the image on the frame for me – inserting black side bars to fill the frame.

[Jeff Pulera]

When I work with HDV clips in Premiere and do a “Frame Grab” to create a still, the still then has the 1440×1080 sizing of the HDV video. I take that still into Premiere and simply change the size to 1920×1080 (Constrain is OFF) and that’s it, no cropping involved.

Perhaps the still was sourced from an HDV video?

Thanks

Jeff Pulera
Safe Harbor Computers