Gif Vs PNG
If using PNG 8 / GIF, with the same amount of colours. Say 256.
Gif are often smaller than PNG in small sizes, less than 20px by 20px
example. I'll have to find out at what point a PNG is lighter. I suspect
it's around 500px.
In all the other cases PNG images will be lighter.
Although
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Your Re: [WSG] your best practise for CSS sprites for elements
document: that have no height declared
CTED] De la
part de Andrew Maben
Envoy� : mardi 25 novembre 2008 17:54
� : wsg@webstandardsgroup.org
Objet : Re: [WSG] your best practise for CSS sprites for elements that have
no height declared
Please, could I ask you to take this "discussion" off-list if you want to
continue. It&
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> On Behalf Of [EMAIL PROTECTED]
> Sent: 25 November 2008 15:59
> To: wsg@webstandardsgroup.org
> Subject: Re: [WSG] your best practise for CSS sprites for elements that
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>
ng smaller.
>
>
> Mike Foskett
> http://websemantics.co.uk/
>
>
>
>
> -Original Message-
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> On Behalf Of [EMAIL PROTECTED]
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g smaller.
Mike Foskett
http://websemantics.co.uk/
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From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of [EMAIL PROTECTED]
Sent: 25 November 2008 15:59
To: wsg@webstandardsgroup.org
Subject: Re: [WSG] your best practise for CSS sprites for elements that
have no height decla
25 novembre 2008 17:54
À : wsg@webstandardsgroup.org
Objet : Re: [WSG] your best practise for CSS sprites for elements that have
no height declared
Please, could I ask you to take this "discussion" off-list if you want to
continue. It's really degenerated to an unresolvable cycl
[EMAIL PROTECTED] wrote:
> There is an issue where a PNG will not look exactly the same in IE vrs FF
>
> So if you try to match a background with the PNG you may have issues
> between the browsers
That's easily resolved by stripping the gamma correction data from the
image using pngcrush.
http:/
Please, could I ask you to take this "discussion" off-list if you
want to continue. It's really degenerated to an unresolvable cycle of
"I'm right", "No, I'M right"... When it just comes down to "Use the
best available solution for the problem at hand"
All compressed image file formats have
On Tue, Nov 25, 2008 at 11:23 AM, Brett Patterson
<[EMAIL PROTECTED]> wrote:
> First of all, No I am not! Second I have tried out differences. Notice the
> difference in file sizes. Thirdly, I did not say that png did not support
> 8-bit, nowhere does it say that, it does however say that GIF only
wouldn't "best practise for CSS sprites" include image quality?
On Nov 25, 2008, at 11:23 AM, Brett Patterson wrote:
First of all, No I am not! Second I have tried out differences.
Notice the difference in file sizes. Thirdly, I did not say that png
did not support 8-bit, nowhere does it say
First of all, No I am not! Second I have tried out differences. Notice the
difference in file sizes. Thirdly, I did not say that png did not support
8-bit, nowhere does it say that, it does however say that GIF only supports
a maximum of 256 colors. Fourthly, Todd your argument is off subject,
beca
There is an issue where a PNG will not look exactly the same in IE vrs FF
So if you try to match a background with the PNG you may have issues
between the browsers
having said that I love PNGs myself
> On Tue, Nov 25, 2008 at 9:06 AM, Foskett, Mike
> <[EMAIL PROTECTED]> wrote:
>> Sorry Brett, y
On Tue, Nov 25, 2008 at 9:06 AM, Foskett, Mike
<[EMAIL PROTECTED]> wrote:
> Sorry Brett, you're wrong.
>
> The png format will handle three levels of bit-depth including 8-bit which
> is the same as the gif format.
>
> The references you state are somewhat outdated and don't consider the
> differen
L PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Brett Patterson
Sent: 25 November 2008 13:16
To: wsg@webstandardsgroup.org
Subject: Re: [WSG] your best practise for CSS sprites for elements that
have no height declared
No, I may have to disagree. GIF files are (a majority of them, if not
all
File size is smaller especially when run through pngGauntlet.
Mike Foskett
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of tee
Sent: 25 November 2008 10:48
To: wsg@webstandardsgroup.org
Subject: Re: [WSG] your best practise for CSS sprites for elements
cially when run through pngGauntlet.
>
> Mike Foskett
>
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> On Behalf Of tee
> Sent: 25 November 2008 10:48
> To: wsg@webstandardsgroup.org
> Subject: Re: [WSG] your best practise for C
: wsg@webstandardsgroup.org
Subject: Re: [WSG] your best practise for CSS sprites for elements that
have no height declared
On Nov 24, 2008, at 3:24 AM, Robert O'Rourke wrote:
>
> If I remember rightly if you are able to save the image with a
> transparent background it keeps the f
On Nov 24, 2008, at 3:24 AM, Robert O'Rourke wrote:
If I remember rightly if you are able to save the image with a
transparent background it keeps the file size lower because a
transparent pixel takes less space than a pixel with colour
information. You can put a coloured outline around t
[EMAIL PROTECTED] wrote:
If I remember rightly if you are able to save the image with a
transparent background it keeps the file size lower because a
transparent pixel takes less space than a pixel with colour
information.
It may be possible to get better compression on a file that con
Yes, and colors in a row or horizontal line, so to speak, compress better
depending on the compression mechanism. Just say that jpeg files
read/compress horizontal, and gif files read/compress vertical, not sure if
that is exactly correct, just an example. But iii (if the size is 1
pixel wide f
> If I remember rightly if you are able to save the image with a
> transparent background it keeps the file size lower because a
> transparent pixel takes less space than a pixel with colour
> information.
It may be possible to get better compression on a file that contains
lots of pixels of
Check out
http://www.alistapart.com/articles/sprites
and
http://www.alistapart.com/articles/sprites2
I think this what your trying to achieve, or at least close to either
one of those articles.
I haven't played much with horizontal sprite images, but usually use
vertical ones, and I have
tee wrote:
I am trying to optimize a site, though the file sizes of the overall
images aren't so much of a problem but the http requests. So I am
attempting to put 10 icons in one gif file, the individual icon size
is merely 600b and the dimension is 18px by 12px.
I made a 18px by 150px to ho
I often have sprites that are 800px or even more, I usually use 100px in
between the images.
But I think there's a limit on earlier versions of Opera that dont take
images bigger than 2000px (not sure at all might be more). So I generally
use 2 or 3 sprites if they get big, I still save a lot of re
I am trying to optimize a site, though the file sizes of the overall
images aren't so much of a problem but the http requests. So I am
attempting to put 10 icons in one gif file, the individual icon size
is merely 600b and the dimension is 18px by 12px.
I made a 18px by 150px to hold 10 ic
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