Keld Helmer Peterson was an architectural photographer who did a lot of working regarding experimentation with high contrast images featuring man made structures.

A similar effect can be created using the threshold tool in Photoshop

I found that Graffiti translated well into the threshold tool however it creates a rather boring image. I also like how the barbed wire looks when using the threshold tool as it creates an abstract, repeating but chaotic pattern.

I found that introducing grain into the flatter images helped the image react better to the threshold tool. however i was careful not to add too much grain as it would result in the image simply looking like a grainy black and white image.

This was one of my favorite images of the photo-shoot. The fence reacted very nicely to the threshold tool giving a strong contrast to the white walls littered with graffiti.

This is my favorite image of the photo-shoot, while the original image was taken in very low lighting, the threshold tool works nicely to highlight the main subject of the photo.

Here I experimented with photographing various signs. On the second image the rust and the peeling vinyl on the sign creates some interesting texture to prevent the image from being too flat.