I'm not aware of any functionality built-in to Daz that would search for a image file that is part of a material surface.
Perhaps it would be possible to acheive what you want with Daz scripting however. I;m not sure if you are a programmer type, but if you are game, there's a few resources out there:
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MCasual has many useful scripts.
and of course the Daz forums have various threads about scripting, i.e.
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You could also ask the same question in the Daz forums themselves, maybe someone can help more...