Exercise 8d Layers Adjustment Layers

	Imaging 1
f	Exercise 8d – Layers – Adjustment Layers
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	§ This is a formative assessment instrument § You must be rated ‘Competent’ in this assessment item.
Learning Outcomes	Learning Outcome 8 - Identify and explain a range of digital imaging concepts such as colour mode, colour space and bit depth as well as demonstrate typical fundamental digital image enhancement techniques, and identify digital image workflow patterns and create a simple file management methodology that conforms to established industry norms.
Tasks	1) Open the document ‘Exercise 8c Masks.psd’ created in Exercise 8c. 2) Set the viewing percentage to 50%. 3) Make the Plane layer the active layer. 4) Select ‘Edit->Free Transform’ and use the handles to enlarge and rotate the image of the plane. Press the Return key to commit the changes, or the Esc key to exit without changes. 5) Make the Ship the active layer. 6) Choose ‘Image->Adjustments->Curves . . .’ and change the curves to lighten the image. Note – the original pixel values have been destroyed by this operation. 7) Undo this operation and we will try another (non-destructive) method ! 8) Ensure the Adjustments panel is displayed. If not select ‘Window->Adjustments’. 9) Click on the ‘Create new fill or adjustment layer’ icon at the bottom of the Layers palette, and select ‘Curves . . .’ 10) Make an adjustment to the curves and click OK. What do you observe ? Adjusts the whole Picture. We only want to adjust the Ship layer, so although this is non-destructive we will try another option. 11) Drag the Adjustment layer to the Bin icon at the bottom of the Layers palette to delete it. 12) Choose ‘Layer->New Adjustment Layer->Curves . . .’, and turn on the option ‘Use Previous Layer to Create Clipping Mask’, then press Return. 13) Adjust the curves. What do you observe this time ? Only adjusts only the ship layer. 14) Press OK. The adjustment layer is shown in the Layers palette. The bent arrow indicates it only applies to the layer below. 15) Click on the eye icon to turn the adjustment layer on or off. 16) Click on the adjustment layer icon for the layer. Further adjustments can be made without image degradation as the underlying pixels have not been altered. 17) Save the image as ‘Exercise 8d Adjustments.psd’