If you work with images in Sitecore, you can here see overviews of the image sizes and formats we recommend you use on SDU's websites.
Here it is important to point out that you do not need to replace existing images with new ones, in the following and updated formats and sizes. But we strongly encourage you to use the new formats and sizes in the future.
Visual overviews of sizes for subfrontpage, atlas slides, study covers, etc. are on their way. These can be found in the complete and text overview.
[This is a machine translation].