Image Format Breakdown

Red Squirrel · Post by **Red Squirrel** » Fri Nov 12, 2004 9:47 pm

In this article we take a look at various characteristics of 4 popular image formats and let you decide which one is best for which situation. We look at file sizes, compression options and other features.

http://www.iceteks.com/articles.php/imageformats

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Chris Vogel · Post by **Chris Vogel** » Sat Nov 13, 2004 12:13 am

That’s a great article! At first, it may be hard to know what format is best for what, but your article does a great job of pointing out the best uses for each.

I know you note this at the end of the article, but the PNG tests on the simple image are not optimised. 24-bit PNGs are overkill for such a limited amount of colour. Just testing one size, I found an indexed PNG beats every other format, and I would bet that goes for other sizes as well.

PNG also has gamma correction, although sometimes that is an annoyance rather than a feature. Fortunately, it’s optional. I know this isn’t about the PNG format specifically, but Internet Explorer has a problem with PNG transparency if the PNG is not 8-bit.

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Red Squirrel · Post by **Red Squirrel** » Mon Nov 15, 2004 2:10 pm

The other types of compression are less used and most programs don't even let you choose any levels like with JPG so it would of been a bit harder to do. Photoshop is the industry standard so I based the compression on that.

Paint for example, wont let you decide what compression to use for jpg, in fact only some versions actually support jpgs. For example on my win2k computer it lets me open/save as jpg, but if I go on another win2k machine it might not, not sure why it's like that.

Though in the future I may make another on a specific format such as PNG, since PNGs are pretty great and have lot of optimization options.

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sintekk · Post by **sintekk** » Mon Nov 15, 2004 2:42 pm

PNGs are supergreat, but I hold off on using them on my designs until IE gets the transparency right.

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Red Squirrel · Post by **Red Squirrel** » Mon Nov 15, 2004 4:11 pm

I say screw IE users.

I usually just try to avoid using trasparancy though it's so tempting because transparancy rocks!

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sintekk · Post by **sintekk** » Mon Nov 15, 2004 4:39 pm

Screw IE Users eh? That's 95% of the interweb you're going to be screwing, so you'll probably need this website a lot...

http://www.condomdepot.com/

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Red Squirrel · Post by **Red Squirrel** » Mon Nov 15, 2004 4:41 pm

LOL I'll have to check if they have volume discounts.

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Red Squirrel · Post by **Red Squirrel** » Wed Nov 17, 2004 4:33 pm

JPEG 2000? Never heard of those. I can maybe do some research. Are they even supported by most browsers? It would definatly be nice to see IE support those but meanwhile... just screw IE.

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rovingcowboy · Post by **rovingcowboy** » Thu Nov 18, 2004 3:50 pm

are you tired of me coming to this site red? you seem to not like it that i use I.E.
most the time.

even though everything you say don't work in ie seems to work in my copy of it?

i have not tryed transperent png's yet but everything else works.?

when it has not crashed that is

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Anonymous · Post by **Anonymous** » Fri Dec 02, 2005 6:28 am

the image of the Squirrel seems to be missing (I would very much like to see the image in which the results were made)

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Red Squirrel · Post by **Red Squirrel** » Fri Dec 02, 2005 4:28 pm

Seems to work at my end. (typical tech support line)

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