Good performance for large images (tile support) [was #27657]
Currently the TBLE loads the whole image from the repository and displays it locally. If you have large scans ( > 10 MB) this is very slow
a) because of the network connection
b) because the client has to render a large image area
Better implement a tiles support in Digilib, preferably via a IIIF based API. There should be some predefined zoom levels which get pre-rendered after an image is ingested into TextGrid. Then TBLE will send requests to load the different tiles. Similar like the online based map tools do it (google maps, Leaflet).