[TYPO3-dam] dam caption as page title

[Stephan Bauer]

Hello,

it is possible to change the generation of the title tag like this:

config.noPageTitle = 2
page.headerData.5 = TEXT
page.headerData.5.field = subtitle // title


I have pages with on picture. Is it possible to use the caption of this 
picture as title tag?

Thanks in advance

Stephan