The Color adjustment panel allows you to affect individual colors in your image, and convert the color image to black-and-white.
Select "Hue", "Saturation", or "Luminance" to display the sliders you want to work with.
The sliders in these panels work on specific color ranges:
Hue: Changes the color. For example, you can change a blue sky (and all other blue objects) from cyan to purple.
Saturation: Changes the color vividness or purity of the color. For instance, you can change a blue sky from gray to highly saturated blue.
Luminance: Changes the brightness of the color range.
To adjust a particular color, drag the slider of the color. You can also use Color Eyedropper to click on a color area in the photo that you want to adjust, drag up or down to affect all similar colors in the photo.
When select B&W, the color image will convert to black-and-white.
Although there are no colors or saturation in black-and-white, you can still use sliders to affect the actual luminance levels of the colors. This allows you to create a more specific look of a black and white effect for your images.
You can select Color Eyedropper , click and drag on a certain area in the photo to get the balance we need for our black-and-white mix.