- each image that is requested is stored in the cache
- the image is taken from the cache if exists there
- the image can be scaled
The purpose of creation a scaled image is because of copyright problems
In a further stept the retrieval of not-shrinked images is restricted
to either access from localhost or with given authentication
This servlet can be used for image-preview purpose after an image search
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1989 6c8d7289-2bf4-0310-a012-ef5d649a1542
