The problem is that the thumbnails are 100px wide but you're displaying them at 190px wide... which makes them very pixelated.
You can solve this in one of two ways. Once is to use ImageGen (http://our.umbraco.org/projects/imagegen) to resize the original images to the exact dimensions you need for your thumbnails. Lots of options and full documentation. It's a very useful tool, even if I say so myself ;)
The other option is to change the size of the thumbnails that umbraco generates. Here's how...
Umbraco creates thumbnails of all images automatically. The default is
100px in the maximum dimension with the other dimension being reduced
proportionally. These have the same url and filename as the image
itself, but with _thumb.jpg appended.
You
can specify a different size for thumbnails or automatically create
multiple sizes when you upload an image to the media section. Simply go
to the Developer section of umbraco and expand the Data Types portion
of the treeview in the top-left of the screen. Click on the Upload data
type. You'll see a text box where you can specify the size(s) for
thumbnails.
If you create multiple thumbnails their names will be (as I recall... but you can look on the filesystem to be sure): /media/1234/myphoto_thumb_200.jpg (for 200px) /media/1234/myphoto_thumb_350.jpg (for 350px) etc.
Your thumbs are being generated at 100*50pixels and you're scaling them up to 190 pixels wide, making them seem poor quality. The files themselves are of reasonable quality (http://www.bib-forum.dk/media/647/illux_thumb.jpg)
As mentioned above, try imagegen (http://www.percipientstudios.com/imagegen/overview.aspx) to generate thumbs at the correct size.
"You
can specify a different size for thumbnails or automatically create
multiple sizes when you upload an image to the media section. Simply go
to the Developer section of umbraco and expand the Data Types portion
of the treeview in the top-left of the screen. Click on the Upload data
type. You'll see a text box where you can specify the size(s) for
thumbnails."
I already tried this.... I set it to 250 in the datatype. But it still creates them in 100 pixels...
I get poor quality thumbnails...
The quality of my auto-generated thumbnails are of very poor quality... Is there somehow to set it to generate thumbs in better quality?
See what im talking about here:
http://www.bib-forum.dk/1137.aspx?umbVersion=1e9bf9ca-a17a-4ae0-8aca-3d1b548b3411
Mikkel
Do you use imagegen?
Can you share the template/xslt which outputs your thumbnails?
Also the link you provided returns 500 server error so we cannot really see what you are doing?
If you remove the umbVersion off the end of the url, it works...so it would be: www.bib-forum.dk/1137.aspx.
Have you installed a package...if so, what package? And like Harald asked, we would need to see your template/xslt.
The problem is that the thumbnails are 100px wide but you're displaying them at 190px wide... which makes them very pixelated.
You can solve this in one of two ways. Once is to use ImageGen (http://our.umbraco.org/projects/imagegen) to resize the original images to the exact dimensions you need for your thumbnails. Lots of options and full documentation. It's a very useful tool, even if I say so myself ;)
The other option is to change the size of the thumbnails that umbraco generates. Here's how...
Umbraco creates thumbnails of all images automatically. The default is 100px in the maximum dimension with the other dimension being reduced proportionally. These have the same url and filename as the image itself, but with _thumb.jpg appended.
/media/1234/myphoto.jpg
/media/1234/myphoto_thumb.jpg
You can specify a different size for thumbnails or automatically create multiple sizes when you upload an image to the media section. Simply go to the Developer section of umbraco and expand the Data Types portion of the treeview in the top-left of the screen. Click on the Upload data type. You'll see a text box where you can specify the size(s) for thumbnails.
If you create multiple thumbnails their names will be (as I recall... but you can look on the filesystem to be sure):
/media/1234/myphoto_thumb_200.jpg (for 200px)
/media/1234/myphoto_thumb_350.jpg (for 350px)
etc.
cheers,
doug.
Your thumbs are being generated at 100*50pixels and you're scaling them up to 190 pixels wide, making them seem poor quality. The files themselves are of reasonable quality (http://www.bib-forum.dk/media/647/illux_thumb.jpg)
As mentioned above, try imagegen (http://www.percipientstudios.com/imagegen/overview.aspx) to generate thumbs at the correct size.
Dan
"You can specify a different size for thumbnails or automatically create multiple sizes when you upload an image to the media section. Simply go to the Developer section of umbraco and expand the Data Types portion of the treeview in the top-left of the screen. Click on the Upload data type. You'll see a text box where you can specify the size(s) for thumbnails."
I already tried this.... I set it to 250 in the datatype. But it still creates them in 100 pixels...
Oh... I forgot to change the "_thumb.jpg" to "_thumb_250.jpg" in the xslt file.
It works perfectly now... Thank you for your help guys.
Mikkel
is working on a reply...