chapter 4 making selections. chapter lessons make a selection using shapes modify a marquee select...
TRANSCRIPT
Chapter Lessons
• Make a selection using shapes• Modify a marquee• Select using color and modify a selection• Add a vignette effect to a selection
Combining Images
• Most Photoshop images are created using compositing:– Combining images from different sources
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
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
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
Make a Selection Using Shapes
• 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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Understanding Marquees
• A selected shaped is enclosed by a marquee
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
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 Menu
bar, then click Deselect
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
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
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
Tips for Making Selections
• Move the mouse slowly: don’t rush• Keep your hand steady• Make sure your mouse is functioning
properly
Modify a Marquee
• Use selection buttons from the options bar to:– Add to and subtract from a marquee– Intersect with a selection
Expanding a Marquee
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
Marquee Modifications
• Expand a marquee• Contract a marquee• Smooth out the edges of a marquee• Enlarge a marquee and add a border
Select Using Color and Modify a Selection
• Use the Color Range command on the Select menu or
• Use the Magic Wand tool on the Tools panel
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 Menu bar, then click Color
Range to open the Color Range dialog box
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
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
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
Transforming a Selection
• You transform a selection by changing its size and other qualities– Click Edit on the Menu bar, point to Transform
then select one of the Transform commands
Flipping a Selection
• Transform a selection by flipping it (changing its direction):– Click Edit on the Menu bar– Point to Transform, then click Flip
Horizontal
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
Add a Vignette Effect to a Selection
• A picture or portrait whose border fades into the surrounding color at its edges
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