Large Image Display, Progressive? Low-Res? Layers (div)?

[Timothy Atwood]

Well, I only got one answer on the Dreamweaver group. And it was not much
help. So here's trying Fireworks...

----- Original Message -----
From: "Timothy Atwood" <tim@holtenwood.bc.ca>
Newsgroups: macromedia.dreamweaver
Sent: Saturday, October 11, 2003 1:39 PM
Subject: Large Image Display, Progressive? Low-Res? Layers?

> I have a web site for an artist. Designed mostly along the standard
> thumbnail -> larger image method for displaying large images. Once someone
> selects the thumbnail, the high quality image is fairly large and takes a
> while to
> display on slower connections. Size of the large image jpegs appears to

turn

> out in the 60 to 120KB range to get the size and image quality needed.
>
> When displaying the large image I want to give the viewer something of a
> preview. Something happening on the screen which lets them know the image

is

> still downloading. Preferably something which visually relates to the

image.

>
> In ignorance I went off and used Progressive JPEGs. It was not until
> later I found out Internet Explorer really does not do Progressive JPEG
> properly. The screens look great in NS, Opera, etc. The image gets
> progressively clearer as it is supposed to. But in IE they just hang there
> with a "blank" page until the image is fully downloaded. Then the image
> appears all at once.
>
> In IE progressive JPEGs appear even worse than normal JPEGs. With a
> non-progressive JPEG IE at least shows it a couple of lines at a time.

With

> progressive JPEG, IE appears to wait for the entire image to download

before

> showing any of it.
>
> The visual experience in all levels of IE I have tried (4-6) is horrible.
> The download of a large progressive JPEG seems to interfere with the
> downloading of all other screen elements. Creating a "jerky" feel as the
> screen loads on slow connections. Other screen elements appear to randomly
> pop into existence. I need something a lot smoother which works in most
> browsers including IE.
>
> First: Is there any way to get IE to display progressive JPEGs
> progressively? A different DOCTYPE tag perhaps?
>
> If not what else would people suggest:
>
> How well does the "LOW-RES" part of an img tag work in people's

experience.

> I'm playing with it now. But I would appreciate other peoples experience

in

> different browsers.
>
> What about Layers, Divs or Rollovers of different sorts. Preferably fairly

simple.

> I find if I load a screen with tons of JavaScript, preloaded functions,

etc,

> it can get pretty bad too. The more crap, the more likely it is to break.
> And it takes time to download and link all that logic. So you again have
> pauses in displaying the screen while non-displayable stuff like

JavaScript

> is being downloaded.
>
> All suggestions welcome.
>
> I case you want to look at the site: [url]http://www.amandamartinson.com[/url] .

Choose

> a thumbnail anywhere in the site. If you are on a slow connection with any
> IE 4 - 6 you will see what I mean about jerky display.
>
>

[Murray *TMM*]

Timothy:

I think I posted the answer over there. The answer is there is no way to do
what you want.

Optimize your images and forget about progressive.

--
Murray --- ICQ 71997575
Team Macromedia Volunteer for Dreamweaver MX
(If you *MUST* email me, don't LAUGH when you do so!)
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"Timothy Atwood" <tim@holtenwood.bc.ca> wrote in message
news:bmhtcn$k35$1@forums.macromedia.com...

> Well, I only got one answer on the Dreamweaver group. And it was not much
> help. So here's trying Fireworks...
>
> ----- Original Message -----
> From: "Timothy Atwood" <tim@holtenwood.bc.ca>
> Newsgroups: macromedia.dreamweaver
> Sent: Saturday, October 11, 2003 1:39 PM
> Subject: Large Image Display, Progressive? Low-Res? Layers?
>
>

> > I have a web site for an artist. Designed mostly along the standard
> > thumbnail -> larger image method for displaying large images. Once

someone

> > selects the thumbnail, the high quality image is fairly large and takes

a

> > while to
> > display on slower connections. Size of the large image jpegs appears to

> turn

> > out in the 60 to 120KB range to get the size and image quality needed.
> >
> > When displaying the large image I want to give the viewer something of a
> > preview. Something happening on the screen which lets them know the

image

> is

> > still downloading. Preferably something which visually relates to the

> image.

> >
> > In ignorance I went off and used Progressive JPEGs. It was not until
> > later I found out Internet Explorer really does not do Progressive JPEG
> > properly. The screens look great in NS, Opera, etc. The image gets
> > progressively clearer as it is supposed to. But in IE they just hang

there

> > with a "blank" page until the image is fully downloaded. Then the image
> > appears all at once.
> >
> > In IE progressive JPEGs appear even worse than normal JPEGs. With a
> > non-progressive JPEG IE at least shows it a couple of lines at a time.

> With

> > progressive JPEG, IE appears to wait for the entire image to download

> before

> > showing any of it.
> >
> > The visual experience in all levels of IE I have tried (4-6) is

horrible.

> > The download of a large progressive JPEG seems to interfere with the
> > downloading of all other screen elements. Creating a "jerky" feel as the
> > screen loads on slow connections. Other screen elements appear to

randomly

> > pop into existence. I need something a lot smoother which works in most
> > browsers including IE.
> >
> > First: Is there any way to get IE to display progressive JPEGs
> > progressively? A different DOCTYPE tag perhaps?
> >
> > If not what else would people suggest:
> >
> > How well does the "LOW-RES" part of an img tag work in people's

> experience.

> > I'm playing with it now. But I would appreciate other peoples experience

> in

> > different browsers.
> >
> > What about Layers, Divs or Rollovers of different sorts. Preferably

fairly

> simple.

> > I find if I load a screen with tons of JavaScript, preloaded functions,

> etc,

> > it can get pretty bad too. The more crap, the more likely it is to

break.

> > And it takes time to download and link all that logic. So you again have
> > pauses in displaying the screen while non-displayable stuff like

> JavaScript

> > is being downloaded.
> >
> > All suggestions welcome.
> >
> > I case you want to look at the site: [url]http://www.amandamartinson.com[/url] .

> Choose

> > a thumbnail anywhere in the site. If you are on a slow connection with

any

> > IE 4 - 6 you will see what I mean about jerky display.
> >
> >

>
>