Archive for January 1st, 2007

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Image Quality – OS X vs. XP

January 1, 2007

apple_30_inch.JPG

We’ll all agree, the visual part of the user experience using computers is paramount. No matter how much you spend on a FAST, LOADED computer, if you have a crappy display, you’re missing a big chunk of that user experience.

Which brings me to a question a buddy of mine asked me the other day – how come images look better on a Mac than a PC??!!

Well, buddy… I looked it up for you and here is why (which is another very good reason to switch to Mac if you like working on your digital photos!).

First of all - Interpolation :

See, XP uses the Linear interpolation method to display an image (see graph below).

linear.JPG

Where OS X uses the Polynomial interpolation method to display an image – aka Cubic Interpolation (see graph below).

cubic.JPG

Now this doesn’t make a huge difference when you look at an image at 100%, but as soon as you scale the image down (to 75% for example) it makes a pretty big difference!

And more and more, images are getting bigger, hence hard to display on a monitor or in a web browser. Especially since most browser size the images down to be able to fully display them.

A picture is worth a 1,000 words, so here is an example :

This is a print-screen of the same photo, displayed with Firefox at 75% on a Mac and on a PC…

compare_osx_xp400.jpg

Second of all – ColorSync : it’s Apple’s color management API for the Mac OS and Mac OS X. And like Wikipedia says it very well, the human color perception is an incredibly complex and subtle process, and different devices have widely different color gamuts or ranges of color they can handle.

In OS X, ColorSync is build in at the core of OS X and manages all the connected systems that need it. This means, developers don’t have to re-write this part into their software, they just use Apples’s API to deal with how it’s gonna be managed (a bit like other features like Spotlight, Speech, etc.) which is after all way more logic.

That’s why a Mac running OS X is the best choice, platform solution to work on your photos ;) And now, it’s time to switch!!

[Via DigitalFreak.net]