Turning a color image into an Achromatic (black, white and grey tones) image by desaturating (pulling the stauration or intensity of the color out).
In PhotoShop you can pull the color out little by little leaving you with some low intensity (desaturated) color. This would not be Achromatic however.
To do this in PhotoShop go to Image Menu>Adjustments>Hue/Saturation> lower the slider or number for saturation. This will "pull" the intensity from the colors.
Below I've enter a -75 for Hanna L.'s brightly colored image from Module 2 and this is the resulting image.
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