Digital Project- Editing using photoshop

This screenshot was taken whilst the photograph levels being shown however no editing had been done at this point.

This screenshot was captured after I clicked "Black and white" tool, no settings had been changed so this is the default back and white tool.

Changing the color bars changes the depth of the black and white filter which then changes the images with the corresponding colours e.g. Red, Yellow, Green, Cyan, Blue and Magenta which represents white.