Pixel Aspect Ratio Question at DVinfo.net

Ed Mohar · July 9th, 2010, 09:08 AM

I have an odd situation that came up at my PBS station. I work with a Chyron graphics generator (SD), and I am making a graphic in photoshop. I know that SD is non-square pixels, and that photoshop visually corrects the non-square pixels so they appear correctly so you can work on them on your computer, and have the file still come out right.

Well, I exported an graphic from my Chyron, 720x486, and opened it in photoshop. Photoshop said it was a square pixel document. I dragged it over to my photoshop graphic that I am making (720x486, .9 aspect) and though the dragged graphic appears correctly, it runs off the canvas!

I did not expect this. How is it possible for 720 pixels from one document not to match up with 720 pixels in another document, but still appear correct?!

Is it possible that photoshop is intepreting my Chyron export incorrectly? Can you change the aspect ratio of an individual layer?

Shaun Roemich · July 9th, 2010, 11:20 AM

Quote:

Originally Posted by Ed Mohar

Is it possible that photoshop is intepreting my Chyron export incorrectly? Can you change the aspect ratio of an individual layer?

PAR of an individual layer, no. But you can select the contents of that layer and Transform it to do the same thing.

Ed Mohar · July 9th, 2010, 07:38 PM

Thanks for the insight. I think I've found the problem: the original graphic put in our character generator was made wrong, then imported wrong, and squished, and no one knew that it had always been wrong from the beginning.

:)

July 9th, 2010, 09:08 AM	#1
Ed Mohar Regular Crew Join Date: May 2008 Location: CNY Posts: 49	Pixel Aspect Ratio Question I have an odd situation that came up at my PBS station. I work with a Chyron graphics generator (SD), and I am making a graphic in photoshop. I know that SD is non-square pixels, and that photoshop visually corrects the non-square pixels so they appear correctly so you can work on them on your computer, and have the file still come out right. Well, I exported an graphic from my Chyron, 720x486, and opened it in photoshop. Photoshop said it was a square pixel document. I dragged it over to my photoshop graphic that I am making (720x486, .9 aspect) and though the dragged graphic appears correctly, it runs off the canvas! I did not expect this. How is it possible for 720 pixels from one document not to match up with 720 pixels in another document, but still appear correct?! Is it possible that photoshop is intepreting my Chyron export incorrectly? Can you change the aspect ratio of an individual layer?

July 9th, 2010, 07:38 PM	#3
Ed Mohar Regular Crew Join Date: May 2008 Location: CNY Posts: 49	Found problem Thanks for the insight. I think I've found the problem: the original graphic put in our character generator was made wrong, then imported wrong, and squished, and no one knew that it had always been wrong from the beginning. :)