Help with scanning resolution

DS
Posted By
David_Skidmore
Feb 10, 2007
Views
170
Replies
2
Status
Closed
I want to scan in photographs to Photoshop CS2 to be used in Premier for a widescreen DVD presentation. To complicate things the presentation will also be used on a 4:3 standard kiosk monitor.

What resolution should I scan the images in?

Im thinking 720×480 at 72 dpi. If I crop to that size and use a 4:3 safe frame as reference (for the important part of the image) then shouldnt it play on either. If on DVD I will get the whole 720×480 image, if on 4:3 the part of the image I loose will have little effect because I used a safe frame as reference and got the important part of the image inside it.

Now, should I make the cropped image at 72 dpi or some higher rez for better quality. The frame ratio will be the same but the quality should be higher, right?

Or do I have no idea what’s going on? Which is quite possible. That is why I need you guys.

Dave

Master Retouching Hair

Learn how to rescue details, remove flyaways, add volume, and enhance the definition of hair in any photo. We break down every tool and technique in Photoshop to get picture-perfect hair, every time.

DR
Donald_Reese
Feb 10, 2007
Thats sounds low to me,but i have no experience with kiosk monitors. i would scan at a higher number like 300ppi on up. it also depends what size photos you are starting with. it would be a different number perhaps if you were scanning postage stamps verses 8x10s. you can always downsize your file at the end stage if you scan at a higher resolution to start, because if you try to upsize the low res file at the end,you are basically adding fake pixels to get the larger size.
MA
Myron_Achtman
Feb 13, 2007
When scanning images for video, for multimedia, or for the Web, the scanning resolution (in ppi) is completely irrelevant. The only thing that matters is the PIXEL DIMENSIONS.

For example, if the video format measures 720 x 480 pixels then the image simply needs to be scanned so that it contains at least 720 x 480 pixels. Almost all scanners today let you choose to scan in "pixels" rather than inches, cm., etc… so the job is rather easy.

If you intend on doing any "pan and scan" effects with your scanned images, then you’ll need more pixels in the image to accommodate the "moves."

All the best,

Myron Achtman,
ADITA Video Inc.,
www.adita.com

How to Improve Photoshop Performance

Learn how to optimize Photoshop for maximum speed, troubleshoot common issues, and keep your projects organized so that you can work faster than ever before!

Related Discussion Topics

Nice and short text about related topics in discussion sections