The purpose of this exercise is to use a specific channel adjustment to get a particular effect in an image.
• A landscape in which you emphasise the depth (aerial perspective) by
strengthening the visual effect of haze.
• A portrait in which you lighten the complexion without significantly altering the
tones of the rest of the image.
• A picture of a garden in which the green vegetation appears light in tone.
I took a picture of a beach with the sun coming down
After converting to black and white I mainly adjusted the blue channel darkening the blues, this added a lot more depth to the image.
RobCox 