slicing images?

I'm doing a web course and have some self assesment questions to answer. The following question has me confused:

Which of the following statements constitutes an advantage of image slicing?

A. Reduced image size
B. Reduced image loading time
C. Increased image resolution
D. Increased image pixilation


I feel pretty sure it's not C or D but have seen both A and B said about image slicing on various web site tutorials.

Any help would be great.

thanks

I'd say 30% A and 70% B :-)

A because slicing allows an image to be selectively compressed in some
software. In other words, some bits of the image (as appropriate) can be
saved as JPEGs and some bits may be better saved as GIF's.
If you're compressing the entire image as a JPG or GIF then I don't see any
advantage in slicing.

B because one of the primary benefits is to create the *perception* that the
image is downloading quicker because it renders on screen as the various
bits download instead of waiting for the entire thing to download before
seeing anything.

--
Regards

John Waller

A. would be a simple answer because you slice the image, of course the image size will be reduced (absolutely logical) while B. would be a good answer because smaller image usually take a short time to load.




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"brintonwhite" webforumsuser (AT) macromedia (DOT) com wrote:

I'm doing a web course and have some self assesment questions to answer. The following question has me confused:

Which of the following statements constitutes an advantage of image slicing?

A. Reduced image size
B. Reduced image loading time
C. Increased image resolution
D. Increased image pixilation

B. theoretically, since sliced images *can* (if connection parameters
allow) be downloaded in parallell packets.
However, IMHO the *true* advantage is that you can create a nice layout
with adjacent images in a nested table.
--
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http://www.vendel.info
Contact me directly by clicking here:
http://contact.vendel.info
Formmail tutorial:
http://www.vendel.info/tut/formmail.html
Nested table demonstration:
http://www.vendel.info/tabletut/

I'm doing a web course and have some self assesment questions to answer.
The following question has me confused:

Which of the following statements constitutes an advantage of image slicing?

A. Reduced image size
B. Reduced image loading time
C. Increased image resolution
D. Increased image pixilation

B. theoretically, since sliced images *can* (if connection parameters
allow) be downloaded in parallell packets.

Another 'version' of the infamous urban legend regarding sliced images
makes its way around the web once again.

Unbelievable..................

And from a professional 'web de-zi-ner' no less!

None of the above.

In fact, it can increase download times, as well as look downright ugly if
the images are not sliced in a perfectly symetrical manner.

--
Al Sparber - PVII
http://www.projectseven.com
Dreamweaver Extensions - DesignPacks - Tutorials - Books
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"brintonwhite" <webforumsuser (AT) macromedia (DOT) com> wrote

I'm doing a web course and have some self assesment questions to answer.
The following question has me confused:

Which of the following statements constitutes an advantage of image
slicing?

A. Reduced image size
B. Reduced image loading time
C. Increased image resolution
D. Increased image pixilation


I feel pretty sure it's not C or D but have seen both A and B said about
image slicing on various web site tutorials.

Any help would be great.

thanks

On Thu, 10 Jul 2003 10:57:19 -0400, "Al Sparber- PVII"
<thisaddress (AT) actuallyworks (DOT) com> wrote:

None of the above.

In fact, it can increase download times, as well as look downright ugly if
the images are not sliced in a perfectly symetrical manner.

My thoughts exactly! It can give the *perception* of a faster download
since the user might see something happening, but that is only
perception and not reality.


Gary

None of the above.

So are there any advantages in slicing?

--
Regards

John Waller

No. Not in my opinion. But I think a lot of people are confused about
slicing for the sake of slicing versus using the slice feature to create
discreet buttons or other images in programs like Fireworks or Photoshop.


"John Waller" <johnw (AT) pinnacleweb (DOT) com.au> wrote

None of the above.

So are there any advantages in slicing?

--
Regards

John Waller

"dreamworms" <webforumsuser (AT) macromedia (DOT) com> wrote

Sorry Al, Gary but you've got it absolutely wrong. A group of small images
downloads more efficiently in a browser than one large image. You slice

image in order to divide it into smaller files to accelerate download time
or to assign different compression or file formats to various parts of an
image, particularly animations.

Slicing is the process of cutting image into pieces, saving the individual
parts as image files, and writing an HTML document that resembles the slices

on-screen. This increases the efficiency of displaying the images on the
browser by decreasing the download time.

Can you point to any evidence or proof that this is true?

I would like to know the facts about this. My intuition (hardly infallable)
tells me that the file sizes of many small images would total more than that
of one single image, due to the numerous headers needing to be downloaded,
and the increased html (tables) needed to display the images.
So how can this be faster?

I'd say that i would take the advantage of slicing to give the visitor
idea of the image.
The engineers who create the application surely have point to create
slicing command, we should appreciate and take the advantage of it.


DREAMWORMS
http://www.siteatelier.com
dreamworms (AT) lycos (DOT) co.uk

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