This is a picture of some clothes pins on a clothes line in my backyard. It displays horizontal and vertical lines. I converted it to black and white, changed the amount of contrast, and blurred out the background.

This is a picture of some paving stones in my backyard. It displays jagged lines. I converted it to black and white, changed the exposure, and changed the amount of contrast.

This is a picture of three pieces of wood in a fence in my backyard. It displays vertical, horizontal, and diagonal lines. I converted it to black and white, changed the exposure, and made the left side of the picture darker.

This is a picture of two rocks on a beach in Monterey. It displays a jagged line. I converted it to black and white, made the top of the left rock darker, and changed the exposure.