Graduated Color

This photo was taken in July of 2013 of the Washington Monument in Washington D.C. 

I used the gradient technique to create a graduated color change in the photograph. First the image was converted to Grayscale, the into a Bitmap form. After returning the photo to Grayscale and then back to RGB form I was able to use the gradient tool to create this effect.

The colors in the monument blend from the patriotic colors of red to blue, with some white peeking through in the sky above. To create this red to blue effect, the colors passed through a deep purple as well, however briefly.