Viewing resized images

Discussion in 'HTML' started by Yousuf Khan, Aug 26, 2004.

  1. Yousuf Khan

    Yousuf Khan Guest

    I'm thinking about this for dialup users. When you display a large image,
    such as a *.JPG or *.GIF to a webpage, which has resized them inside the
    <img> tag with the "width" and "height" attributes, does that make it easier
    (faster) to view it? What I'm sort of asking is whether I should save
    seperate thumbnail versions of large images, or just rely on the <img> tag
    attributes?

    Yousuf Khan

    --
    Humans: contact me at ykhan at rogers dot com
    Spambots: just reply to this email address ;-)
     
    Yousuf Khan, Aug 26, 2004
    #1
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  2. Yousuf Khan

    Mark Parnell Guest

    On Thu, 26 Aug 2004 06:30:44 GMT, Yousuf Khan <> declared
    in alt.html:

    > I'm thinking about this for dialup users.


    Very generous of you. :p

    > When you display a large image,
    > such as a *.JPG or *.GIF to a webpage, which has resized them inside the
    > <img> tag with the "width" and "height" attributes, does that make it easier
    > (faster) to view it?


    Depends whether it has been made bigger or smaller in the HTML. Assuming
    you mean smaller...

    Faster than what? Than at full size? Maybe marginally. Than a smaller
    version of the same image? Of course not.

    > What I'm sort of asking is whether I should save
    > seperate thumbnail versions of large images, or just rely on the <img> tag
    > attributes?


    Don't resize images in your HTML. Besides the user having to download an
    unnecessarily large file, browsers are pretty bad at resizing images
    anyway. Much better to resize it in an image editing program and just
    use the smaller version on your site.

    --
    Mark Parnell
    http://www.clarkecomputers.com.au
    "Never drink rum&coke whilst reading usenet" - rf 2004
     
    Mark Parnell, Aug 26, 2004
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  3. Yousuf Khan

    Sid Ismail Guest

    On Thu, 26 Aug 2004 06:30:44 GMT, "Yousuf Khan" <> wrote:

    : I'm thinking about this for dialup users. When you display a large image,
    : such as a *.JPG or *.GIF to a webpage, which has resized them inside the
    : <img> tag with the "width" and "height" attributes, does that make it easier
    : (faster) to view it? What I'm sort of asking is whether I should save
    : seperate thumbnail versions of large images, or just rely on the <img> tag
    : attributes?


    Using smaller width and height in the IMG tag does not speed up the access
    time, as the _full_ image is still downloaded into cache. All you've done
    is to change the presentation. In fact, you've increased the access time,
    as there is now an extra step to resize.

    Use clickable thumbnails instead, yes, and the user can view the full
    picture, if he wishes, with the simple expedient of a click on the
    thumbnail.

    Sid
     
    Sid Ismail, Aug 26, 2004
    #3
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