Chapter 3 Making Selections. Chapter Lessons Make a selection using shapes Modify a marquee Select...
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Transcript of Chapter 3 Making Selections. Chapter Lessons Make a selection using shapes Modify a marquee Select...
Chapter 3Making Selections
Chapter Lessons• Make a selection using shapes
• Modify a marquee
• Select using color and modify a selection
• Add a vignette effect to a selection
© 2009 Delmar Cengage Learning 2
Combining Images
• Most Photoshop images are created using compositing:– Combining images from different
sources
© 2009 Delmar Cengage Learning 3
Sources for Images
• Other Photoshop images
• Royalty-free images
• Pictures from digital cameras
• Scanned artwork
• Original artwork created in other programs
• Other sources that have given you permission
© 2009 Delmar Cengage Learning 4
Understanding Selection Tools
• Selection tools are used to select images in order to modify them
• Two common selection methods are available:– Using a tool– Using color
© 2009 Delmar Cengage Learning 5
Choosing a Selection Tool
• Examine images to evaluate selection options
• Learn how to identify useable edges to isolate imagery
• Learn how to spot colors that can be used to isolate a specific object
© 2009 Delmar Cengage Learning 6
Make a Selection Using Shapes
Selecting by Shape
• Use Freeform tools to select irregular shapes– Click the tool on the Tools panel, then
drag the pointer around the object
• Use Fixed-Area tools to select objects that are rectangular or elliptical
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Selection Tools Available
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Understanding Marquees
• A selected shaped is enclosed by a marquee
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Elliptical Marquee
Marquee surrounding an irregular shape
Fastening Points
• An anchor within the marquee
• Created each time the selection tool is clicked
• Visible when Polygonal or Magnetic Lasso tools are used to select an object
10© 2009 Delmar Cengage Learning
Working with Selections
• Move a selection
• Copy a selection
• Transform a selection
• Make adjustments to a selection
• To deselect an image, click Select on the Application bar, then click Deselect
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Placing a Selection
• Copy or cut a selection, then paste it to a different location or to a different image
• Use the Move tool to drag a selection to a new location
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Selection Hints
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Using Guides
• Non-printable horizontal and vertical lines
• Used to help position a selection
• To create a guide – Position the pointer on either ruler – Click and drag the guide into
position
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Using the Magnetic Lasso Tool
• Use the Magnetic Lasso tool to select an irregular shape
• Click the tool on the edge of the shape to create a fastening point
• Drag the pointer around the shape
• Click directly over the initial fastening point to close the shape
15© 2009 Delmar Cengage Learning
Magnetic Lasso Tool Settings
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Tips for making selections• Move the mouse slowly: don’t rush
• Keep your hand steady
• Make sure your mouse is functioning properly
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Modify a Marquee Changing the Size of a Marquee
• Use selection buttons from the options bar to:– Add to and subtract from a marquee– Intersect with a selection
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Expanding a Marquee
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Marquee surrounds rectangle
Selection expanded to include three
shapes
Marquee expanded by 5 pixels
Using the Quick Selection Tool
• Paint to select an object
• Uses a resizable brush
• Add and subtract from selection
© 2009 Delmar Cengage Learning 20
Marquee Modifications
• Expand a marquee
• Contract a marquee
• Smooth out the edges of a marquee
• Enlarge a marquee and add a border
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Select Using Color and Modify a Selection
Selection Options
• Use the Color Range command on the Select menu
or
• Use the Magic Wand tool on the Tools panel
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Using the Color Range Command
• Select the Color Range command to open the Color Range dialog box
• Identify which colors to use to make a selection
• Exclude colors, if necessary• Click Select on the Application bar,
then click Color Range to open the Color Range dialog box
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Magic Wand Tool Options
• Four selection buttons
• Tolerance setting used to specify whether similar pixels will be selected
• Anti-aliased check box used to soften the appearance of the selection
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More Magic Wand Tool Options
• Contiguous check box used to select pixels that are next to one another
• Use All Layers check box used to select pixels from all layers
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Selection Tips
• Identify the shape to select
• Assess the qualities of the object
• Decide which method to use: color or magic wand– Color: object includes common colors– Magic wand: object includes identifiable
edges and a definable shape
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Transforming a Selection
• You transform a selection by changing its size and other qualities– Click Edit on the Application bar, point
to Transform then select one of the Transform commands
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Flipping a Selection
• Transform a selection by flipping it (changing its direction):– Click Edit on the Application bar– Point to Transform, then click Flip
Horizontal
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Healing Brush Tool
• Use the Healing Brush tool on the Tools panel to fix imperfections in an image
• Example of imperfections:– Dirt and scratches in a picture– Wrinkles on a face
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Add a Vignette Effect to a Selection
Defining Vignettes
• A picture or portrait whose border fades into the surrounding color at its edges
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Uses for Vignettes
• Give an image an old-world appearance
• Tone down an overwhelming background
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Vignette Characteristics
• A vignette effect uses feathering to fade a marquee shape
• The feather setting blurs the area between the selection and the surrounding pixels
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Vignette Example
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Before Vignette applied to
Background
After Vignette applied to
Background
Creating a Vignette
• Use a marquee or lasso tool to create a marquee in an image layer
• Modify the feather setting to increase the blur effect
• Add the vignette effect to the layer:– Click Layer on the Application bar– Point to Add Layer Mask– Click Reveal Selection
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