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


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

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

7© 2009 Delmar Cengage Learning

Selection Tools Available


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 Application 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


Selection Hints


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


Magnetic Lasso Tool Settings


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 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


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

Selection Options

• 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 Application 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 Application 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 Application 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

Defining Vignettes

• A picture or portrait whose border fades into the surrounding color at its edges


Uses for Vignettes

• Give an image an old-world appearance

• Tone down an overwhelming background


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


Vignette Example


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


Chapter 3 Making Selections. Chapter Lessons Make a selection using shapes Modify a marquee Select...

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