Review Questions: Week 4
Paula Payne

1. If you needed to create a square selection, what selection tools would you use?
   Rectangular Marquee
   
   
2. What shape of selection does the Elliptical Marquee create?
   Ellipse or Circle
   
   
3. What short-cut key would you use to form a perfect square or circle as you select?
   Shift key
   
   
4. If you have an image or graphic with a large area of blue pixels, what would be the easiest tool to use to select these same-colored pixels?
   Use the Magic Wand tool.
   
   
5. True or False? The Magic Wand selects pixels based on edge-contrast. Why or why not?
   False, the Magic Wand selects adjacent pixels based on their similarity in color.
   
   
6. True or False? The Lasso Tool selects pre-defined selections. Why or why not?
   False, the Lasso Tool is used to make selections that require both straight and freehand lines.
   
   
7. Explain the term 'Fixed Aspect Ratio' when working with Selections.
   It is used to constrain the aspect ratio of the selection.
   
   
8. If you have already created a selection and you want to add or subtract from the selection, what would you do?
   Use the Shift key to add to the selection and the Alt key to subtract from the selection.
      OR
   Use the "Add to selection" or "Subtract from selection" button on the Tool bar.
   
   
9. If you wanted to create a Fixed Size Rectangular Selection, where would you input your Width and Height values?
   In the Width and Height boxes on the Tool bar.
   
   
10. While using the Magnetic Lasso, how and where would you control the value of the edge contrast so Photoshop snaps to the edges you need it to?
    Enter the value in the "Edge Contrast" box on the Tool bar.
    
    
11. I have an unsteady hand! What settings for the Magnetic Lasso can help me with this issue and why?
    Enter a larger number in the "Width" box on the Tool bar. The value entered determines how close to an edge your cursor has to be for the Magnetic Lasso to accurately select the edge.
    
    
12. Explain in detail what the 'Contiguous' setting affects when using the Magic Wand Tool.
    Uncheck this box if you want Photoshop to select all pixels in an image that are the same color (e.g., blue) even if there are pixels of different colors separating the same color pixels (e.g., blue).
    
    
13. What settings can help you achieve smoother and softer edges for selections?
    Feather and Anti-Alias
    
    
14. Explain the differences between Feather and Anti-Alias.
    Feather softens the selection in a more drastic way than Anti-Alias. Anti-Alias mimics soft edges by using an algorithm.
    
    
15. Describe two ways to activate the Feather command on a selection.
    Set the Feather values before or after you've made your selection.
    
    
16. True or False: You can check off the Anti-Alias check box before or after you've create a selection in order for it to take effect.
    False, you have to check off the Anti-Alias box before you've made the selection.
    
    
17. Describe three ways to access/execute Transformation commands for Selections.
    After you have transformed the selection:
    1. Double-click inside the marquee
    2. Click the check mark on the Tool Bar
    3. Press the Enter key to accept the changes.
       
       
18. Describe in your own words what a Quick Mask is and how you can use it in your work.
    A quick mask is a temporary (one-time basis) area used to isolate a specific area in the image. The isolated area can be edited at will while the areas around the mask are left untouched.
    
    
19. When you work with regular selections and selection tools such as the Magnetic Lasso or the Rectangular Marquee, what mode are you working in?
    Standard mode.
    
    
20. When working in Quick Mask Mode, what would you do to add to your present selection?
    Paint with white.
    
    
21. Why would you want to preview your feathered selection using Quick Mask Mode?
    In standard mode, you can't really tell where the feathered edge begins and ends. In quick mask mode, you can see exactly what is selected and what isn't.
    
    
22. Explain three ways to create Feathered selections when you are working with Quick Mask Mode.
    1. Before making the selection, enter a value in the Feather box on the Tool Bar. Then, switch to Quick Mask Mode.
    2. After making a selection, choose Menu Bar > Select > Feather and enter a value. Then, switch to Quick Mask Mode.
    3. After making a non-feathered selection, switch to Quick Mask Mode. Then, use the Gaussian Blur filter to create the feather.

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