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This thread is a continuation of an earlier thread about DjVu image compression. You can find the original thread here. Both these threads could have (and perhaps should have) been in the main Xara Forum instead of this gallery. I originally started the post here as a way to demonstrate the power of DjVu to display high resolution images of our Xara art. In that regard perhaps the gallery is the right place.
Below is an example of a simple DjVu interface using xara-developed gels. You need the DjVu browser plugin to see it. If you don't have it you can get it free at DjVu.Com Note: Plugin reportedly works for some Opera users and not for others.
The image-map-like links and mouseover comments are entirely within the DjVu compressed file. Links are set to open in new windows. Try them and see where they lead you... [img]/infopop/emoticons/icon_smile.gif[/img]
<EMBED TYPE="image/x-djvu" SRC="http://www.designstop.com/test/gelinterface.djvu" HEIGHT=500 WIDTH=325 ZOOM=stretch PASSIVE=yes>
Regards, Ross
<a href=http://www.designstop.com/>DesignStop.Com</a>
[This message was edited by Ross Macintosh on April 14, 2001 at 07:13 AM.]
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This thread is a continuation of an earlier thread about DjVu image compression. You can find the original thread here. Both these threads could have (and perhaps should have) been in the main Xara Forum instead of this gallery. I originally started the post here as a way to demonstrate the power of DjVu to display high resolution images of our Xara art. In that regard perhaps the gallery is the right place.
Below is an example of a simple DjVu interface using xara-developed gels. You need the DjVu browser plugin to see it. If you don't have it you can get it free at DjVu.Com Note: Plugin reportedly works for some Opera users and not for others.
The image-map-like links and mouseover comments are entirely within the DjVu compressed file. Links are set to open in new windows. Try them and see where they lead you... [img]/infopop/emoticons/icon_smile.gif[/img]
<EMBED TYPE="image/x-djvu" SRC="http://www.designstop.com/test/gelinterface.djvu" HEIGHT=500 WIDTH=325 ZOOM=stretch PASSIVE=yes>
Regards, Ross
<a href=http://www.designstop.com/>DesignStop.Com</a>
[This message was edited by Ross Macintosh on April 14, 2001 at 07:13 AM.]
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I'm a big fan of Opera and the plug-in works fine for me.
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Ross,
Persuant to our previous discussion....
That is a very good Idea! We could expand that to related areas also. The museum is intersted I puting a teaching package to gether and is going after grant money to used the WWII ship to show technology threads a CD with all the illustrations could be part of the package!
As an example of what DjVu can do I have a TIFF of a big drawing I had created in Xara (before my Export problems) about 35" long by 12" high. converted at 200dpi. About 33Megs converted in DjVu 247k. Makes me a beleaver. Oh look the same as the TIFF at any resonable zoom levels.
John
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Bytheway - That is good news regarding Opera. I've edited my earlier post to reflect this information.
JohnD - Try exporting your Xara drawing as a jpg with a reasonable amount of compression (if that's the right word for what jpg "quality" settings do). Then DjVu encode that. You could end up with a smaller file size and still have reasonble quality.
Regards, Ross
<a href=http://www.designstop.com/>DesignStop.Com</a>
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Ross,
Since you already work with DJVu: is it a lossless quality compression or does it inherit a certain amount of loss in picture quality ?
I am working with LuraTech (www.luratech.com), the basis of the new jpg 2000 format to be released end of this year. You can compress any file either lossless or you have to sacrifice on quality if you run higher compression levels. I doubt that there is a real lossless compression algorythm with a ratio of 1:1000...
Tell us more!
jens
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Jens - I had just about finished one-finger typing a lengthy reply when my three-year old came over and pressed the Esc key erasing all my poor finger had achieved [img]/infopop/emoticons/icon_frown.gif[/img]
Now I'll try a more to the point reply. DjVu is marketed as a means of making documents more bandwidth friendly and thus more accessible. It is used in archiving systems as well as to facilitate web distribution.
The format can encode multi-page documents complete with a thumbnail index and encoded hyperlinks. The LizardTech site gives the example of a 110 page report that in a PDF format was 133mb while the equivalent in DjVu was 3mb. I don't think DjVu are trying to be a prepress solution so much as a distribution option that makes sense.
The DjVu encoding is not promoted as lossless. In my limited experience, in photo mode, it seems to reproduce the file you are encoding quite accurately. Encode a high res uncompressed tif and you'll get a similarly high quality DjVu image. Encode a low quality jpeg, you'll get an even smaller file size, and the quality will stay about the same.
Lizardtech also markets their MrSID's family of products. They claim it is lossless. I haven't played with it much so I can't report on it. Gary did a review on it so maybe he can tell us more.
I haven't seen anything about Luratech before today. I guess I'll have to play with it too!
Regards, Ross
<a href=http://www.designstop.com/>DesignStop.Com</a>
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and Irfanview already shows the djvu.
Bytheway: how did you get the plugin working in Opera?
I first installed it as netscape (Opera's typical way of getting plug-ins) but it crashed upon opening this thread. Then I uninstalled, and installed in Explorer to be able to view etc. Works fine, but Opera keeps on crashing when it faces a djvu. Help!!!
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Irfanview's DjVu display isn't full featured. For instance, it won't display the mouseover comments or links embedded in the DjVu image above.
Regards, Ross
<a href=http://www.designstop.com/>DesignStop.Com</a>
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I already mailed Irfan about it. When djvu splits text and bitrmap into different layers, and puts the text on top, Irfanview only shows the top layer. he'll come up with a solution, I'm shure. And quicker than most others, despite the fact his viewer is free. [img]/infopop/emoticons/icon_cool.gif[/img]
(seen with IE5.5, Opera still gets a runtime error fit whatever I try. Perhaps it is the djvu browser plugin exe that allows only one setup?) [img]/infopop/emoticons/icon_confused.gif[/img]
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I'm really not sure exactly how I got the plug-in to work. When I ran the install procedure it identified IE and Netscape on my machine, but not Opera. I figured I'd have to find the Netscape plug-in and move it into the Opera plug-in directory, but I didn't have to. After the install, I realized I hadn't installed Netscape on my computer after my last upgrade, so the plug-in installer must have identified Opera as Netscape. Anyway, I fired Opera up and the plug-in just worked.
I am using the latest Opera 5.10, maybe that made a difference.
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Me too I use Opera 5.10. But the only difference is that I still have the Netscape copy of Opera in the folder. This might be it...
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Ross,
The violet colored link caught my attention. Happens that our family drove over to Bend, Oregon for the Easter weekend. Very beautiful. Mid 20's in the early a.m. but temperatures rose up the to the 60's by 9 or 10 a.m.
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John - The links were found quite haphazardly through the colour associations. I just now started following links from the violet link and found the website of an amazing realist painter. Check it out - here's a direct link.
Regards, Ross
PS - I like the Lime link. The guy who created it seems really nice. See his retail site about his business selling pies. It is a good story.
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Ross, thanks. Very "classy" stuff. He really has an interesting style of using roundish forms. Then you see his work for Time Mag and its something altogether different.
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John - Wouldn't it be great to see Alan Magee's work in a DjVu format? The small jpg's clearly don't do his paintings justice. I would love to see closeup details of his work. It seems to me DjVu is a great representational tool for artists to display their creations effectively on the web. That is, let the viewer get a relatively better feel for the true character of the art.
Regards, Ross
<a href=http://www.designstop.com/>DesignStop.Com</a>
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I downloaded a copy of the LuraTech program and tried it out on several jpgs. It is of interest to me in that you can keep the same formate for moderate compressions. For very high levels of compressionthey have there own format in the same way DjVu does. Makes me wonder which will be the format of choice in a couple of years. And will it matter.
John
