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IE8 image rendering - poor quality issues

microsoft.public.internetexplorer.general






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Old 11-13-2009
John C
 

Posts: n/a
IE8 image rendering - poor quality issues
I recently discovered a problem with IE8.

I have a web page that has technical drawing image files. The images are
3000x700, resized to a width of 700, by IE. When the web page is viewed in
IE8 on a pc, the image quality looks great. When the exact same web page is
viewed through a Remote Desktop Protocol connection, it looks really bad -
the line drawings are very jagged and have gaps, the text is missing or
completely unreadable.

I originally thought it was a problem with RDP, because it first became
apparent when using a Wyse thin client connected to Terminal Server 2008. I
posted the problem in the TS forum (
http://social.technet.microsoft.com/...2-9bfeee621f47
), and we got pretty far towards defining the problem, but not finding a
solution. I think the solution, if there is one, will have to come with a
fix in IE. So here I am for help.

Here is a quick summary of the problem:

I have an intranet page that has embedded .png images, scaled down in size.
(using .jpg or .gif instead of .png makes no difference)
1. When I view them in IE8 on TS2008 via RDP connection, the images look
jagged and much of the text does not appear.
2. When I view them in IE8 on TS2008 from the console, or from a Vista pc,
they look fine.
3. When I veiw them in MS Office Manager on TS2008 via RDP connection, they
look fine.
4. When I create a document in Word 2007, insert the image files, save as a
..html file, and view via a RDP connection, they look fine.

Something about the way IE resizes these images, through an RDP connection,
causes them to have a poor image quality. Something in the code that Word
created prevents this problem. What could it be?

Thanks.
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