Unit 1


unit 1

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Hue, Saturation and Lightness in Photoshop CS5

Hue is the colour seen seen by the human eye. When you change the hue you the colour of the pixels and moved around the colour wheel.


Saturation controls the amount of grey in an image.


Lightness controls how light the image is.


The best way to see the impact of changing these settings is by experimenting with them. To do this you should open an image then access the settings for Hue, Saturation and Lightness. To accesss the settings for Hue, Saturation and Lightness go to Image > Adjustments > Hue/Saturation or press Ctrl +U.


There are a range of settings already in place for you to experiment with. Use the drop down menu to try the different effects.


It is possible to adjust the Hue and Saturation in part of an image. To do this use the marquee tool to select the area you want to make changes to.


The image below was created by using the magnetic lasso tool to select the apple. Then I right clicked and chose Select Inverse. This then selected all the image but the apple. Then I went to Image > Hue, Saturation and Lightness and changed the Saturation to -100.


Fruit bowl image

Original image: Baking Day 7


If you do not want to make changes to the original image it is possible to modify the image using an adjustment layer. To do this simply go to Layer > New Adjustment Layer > Hue/Saturation.



Anthony Bennett



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