Ex 4 - Colour Theory

Exercise 4 – Colour Theory 2

1.     Start Photoshop and open the document you created in Exercise 3. ·       What is the keyboard shortcut for opening an existing Document ?  command “O”    2.     Change the Blending Mode of the layer Group to ‘Pass Through’. 3.     Make the background layer the working layer by selecting it in the Layers palette. 4.     Use the Rectangular Marquee tool to select the top half of the image. 5.     Use the Paint bucket tool to fill this area with Black. ·       What is the keyboard shortcut for this tool ?             command “B”     6.     Change the Blending Mode of the ‘Red Circle’ layer to ‘Lighten’. 7.     Do the same for the Blue and Green Circle layers. 8.     Select the Move tool. ·       What is the keyboard shortcut for this tool ?             “V”       9.     Turn on the ‘Auto-select’ option and set it to ‘Layer’ (Not ‘Group’). 10.  Drag the three circles so they all overlap each other. 11.  This simulates the     RGB                 Colour System. 12.  Rename the group of circle layers to indicate this. 13.  Add a text layer (using white text) saying ‘<name> Colour System’. 14.  Select the group of circles in the layers palette. 15.  Duplicate the group using ‘Layer -> Duplicate Group …’. 16.  Use the Move tool with ‘Auto-Select’ set to ‘Group’ to drag the new group to the bottom half of the page. 17.  Change the Blending Mode of the this group to ‘Difference’. 18.  This simulates the     CMYK               Colour System. 19.  Add a text layer saying ‘<name> Colour System’. 20.  Save the document as ‘Ex 4 – Primary_Colours.psd’