1440x1080 pics skewed at DVinfo.net

Steve Graham · January 29th, 2008, 08:21 AM

I am taking pics during filming but they look like perspective is off. Anyone else notice this? It appears objects look too thin. Should I set pic size differently?

Carl Middleton · January 29th, 2008, 08:55 AM

You will need to tell your photo program that the image is at the right aspect ratio. Your pictures are pixel-for-pixel correct, but probably being displayed in square pixels!

C

Chris Hurd · January 29th, 2008, 08:56 AM

If the images look like a Spaghetti Western (squished), it's because your viewing application is using the wrong Pixel Aspect Ratio (which needs to be 1:1.333).

Martin Mayer · January 29th, 2008, 09:42 AM

To put some numbers on the answers above - you probably need to stretch your 1440x1080 pixel image out WIDER to 1920x1080 pixels, in a still image processing app.

Gintaras Mockus · January 30th, 2008, 02:13 AM

Hm, my camera record pictures on sd card 1920x1080 in square pixel aspect. Or do you mean grab pictures from video?

Steve Graham · January 31st, 2008, 09:02 AM

Martin - that was it. The frame grab needs stretching. My Dell Image Expert program can't stretch and I am Photoshop stupid. Anyone have simple way to batch frame grabs and stretch? - Steve

Chris Hurd · January 31st, 2008, 09:19 AM

A good alternative is Paint Shop Pro from Corel. Download a trial version and if you like it, the cost is only $120 or so compared to the expensive of PhotoShop. You can set up a batch script in PSP to change the aspect ratio of a group of images; its help files are very extensive so it should be relatively easy to learn how to do.

Dave Gosley · January 31st, 2008, 05:57 PM

You'll find PSP is good - but after a while it starts to slow down your pc if you allow it to index too much.

It was far far better when the product was owned by it's creators - JASC Software. COREL have done what they do with most things and turned it top heavy with lots of silly peripheral stuff that really isn't needed and is equally heavy.

Overall - better value for money than Photoshop.

January 29th, 2008, 08:21 AM	#1
Steve Graham Regular Crew Join Date: Dec 2007 Location: Chicago IL Posts: 30	1440x1080 pics skewed I am taking pics during filming but they look like perspective is off. Anyone else notice this? It appears objects look too thin. Should I set pic size differently?

January 29th, 2008, 08:55 AM	#2
Carl Middleton Major Player Join Date: Sep 2007 Location: Fernandina Beach, FL Posts: 562	You will need to tell your photo program that the image is at the right aspect ratio. Your pictures are pixel-for-pixel correct, but probably being displayed in square pixels! C __________________ Carl Middleton Whizkid Mediaworks

January 29th, 2008, 08:56 AM	#3
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	If the images look like a Spaghetti Western (squished), it's because your viewing application is using the wrong Pixel Aspect Ratio (which needs to be 1:1.333). __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

January 29th, 2008, 09:42 AM	#4
Martin Mayer Major Player Join Date: Jun 2004 Location: Oxfordshire, UK Posts: 416	To put some numbers on the answers above - you probably need to stretch your 1440x1080 pixel image out WIDER to 1920x1080 pixels, in a still image processing app. __________________ Martin at HeadSpin HD on Blu-ray

January 31st, 2008, 09:02 AM	#6
Steve Graham Regular Crew Join Date: Dec 2007 Location: Chicago IL Posts: 30	Batch stretch in photoshop Martin - that was it. The frame grab needs stretching. My Dell Image Expert program can't stretch and I am Photoshop stupid. Anyone have simple way to batch frame grabs and stretch? - Steve

January 30th, 2008, 02:13 AM	#5
Gintaras Mockus New Boot Join Date: Jan 2008 Location: Mazeikiai, Lithuania Posts: 9	Hm, my camera record pictures on sd card 1920x1080 in square pixel aspect. Or do you mean grab pictures from video?

January 31st, 2008, 09:19 AM	#7
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	A good alternative is Paint Shop Pro from Corel. Download a trial version and if you like it, the cost is only $120 or so compared to the expensive of PhotoShop. You can set up a batch script in PSP to change the aspect ratio of a group of images; its help files are very extensive so it should be relatively easy to learn how to do. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

January 31st, 2008, 05:57 PM	#8
Dave Gosley Major Player Join Date: Oct 2007 Location: Hampshire Posts: 226	Psp You'll find PSP is good - but after a while it starts to slow down your pc if you allow it to index too much. It was far far better when the product was owned by it's creators - JASC Software. COREL have done what they do with most things and turned it top heavy with lots of silly peripheral stuff that really isn't needed and is equally heavy. Overall - better value for money than Photoshop. __________________ http://www.videoproductionshampshire.co.uk