In the case of a picture, or a video, that portraits another non-free image, can it be freely licensed? For example if I take a picture of a libreboot laptop but there is the ThinkPad logo, or a video of a city center where there are all sort of ads images, or a picture in a museum but there is a painting. Or even another example: if a video from fossdem is freely licensed, does it mean that somebody else can cut out the face of any participant and use it freely?
A good example that I’ve found: picture of Times Square. One of the many permissively licensed CC images. To what exactly does CC apply to here? Surely I cannot cut out the TDK logo and claim it’s CC-BY.