Go Back   MacRumors Forums > Special Interests > Visual Media > Digital Photography

Thread Tools Search this Thread Display Modes
Old Jan 5, 2013, 10:10 PM   #1
macrumors 6502a
Join Date: May 2010
figuring out acrual DPI of images in pathfinder vs photoshop

I was looking at some images in both pathfinder & Photoshop CS6, when I looked at an image I scanned with my HP photosmart, in the get info button in pathfinder, it would list horizontal & vertical resolution as 600 DPI, when I opened this same image in Photoshop, & clicked on file info there was very little about it under camera data, just a resolution of 72 DPI.

In the HP scan settings, I chose 600 DPI, why is Photoshop showing it as only 72 DPI?

what is the actual resolution of this image? which is going to give me an accurate number and the one I should believe? pathfinder? or Photoshop? I thought it was 600 DPI

how can I be sure that I am scanning my images at the resolution I choose?
Sossity is offline   0 Reply With Quote
Old Jan 6, 2013, 10:34 AM   #2
macrumors G4
Join Date: Jul 2002
Location: USA
DPI is meaningless except in a displayed or printed image. A 300 dpi image printed at 5 in x 8 in will be only 150 dpi if printed at 10 in x 16 in. For electronic images, the meaningful number is pixels. In the case of the 5x8 image here, the pixel density is 1500x2400. You need enough pixels for your final product to have the desired resolution.

The desired resolution is determined by how the image will be used. If a color image is intended to be held in hand, then it will have photographic resolution at 300 dpi. If it is to be used as a poster on the bus stop cover, then its resolution need by much lower.

These are issues that have been discusses ad nauseum on this and other forums. A simple search of this forum will yield quite excellent discussions of the issues surrounding the proper resolution for your application. There is no need to repeat these discussions in this thread.
Neither a borrower nor a lender be
For loan oft loses both itself and friend
William Shakespeare from Hamlet
MisterMe is offline   0 Reply With Quote

MacRumors Forums > Special Interests > Visual Media > Digital Photography

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
Help!! I need help figuring out how to mask something like this in photoshop!!!! discreetthinker Design and Graphics 2 Aug 29, 2013 09:55 PM
Macheist bundle for $9.99. Clean My Mac 2, Fantastical and (may be) pathfinder sujithgokul Mac Applications and Mac App Store 1 Apr 21, 2013 05:56 PM
Figuring out cable I need the.sheepdog iMac 8 Dec 25, 2012 09:02 AM
Yojimbo and PathFinder want access to my contacts Avro Mac Basics and Help 1 Nov 3, 2012 08:11 PM

Forum Jump

All times are GMT -5. The time now is 09:09 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2015, MacRumors.com, LLC