For a slideshow it should be possible to make the title (or the objectname) of an image visible. For Descriptions of an image you have two fields: title and description but only the description is visible in a slideshow. Both parts of the inscription are also in the image IPTC-part named objectname and caption. Why exist the field objectname if it is impossible to show it. Also in the database are both parts, every as an extra record in the table 'imagecomments.'
Image title can be displayed while SLideShow using current implementation from git/master. Gilles Caulier