an idea whose time has come (back)
Coloured Advertising Spaces
The images above are not taken from an art project, but are vintage photographs with highlighted areas to sell advertising space. From All My Eyes:
Tucked away in Duke University’s vast archive of outdoor advertising, is a small group of photos about the selling of outdoor ad space. In addition to the expected blank billboards and “your ad here” signs, are a handful of altered photographic prints, artifacts of the sales process.
More examples and info here