Chapter 3

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Quick Selection Tool

Add (+) or subtract (-) areas of the selection until you have the area you want

Fine-Tune the Selection Area by Repositioning the Marquee While Creating It

Keyboard + Mouse-Click combinations are important

Freehand Selections

Lasso Tool, Polygonal Lasso Tool, Magnetic Lasso Tool

Fine-Tune the Selection Area by Repositioning the Marquee While Creating It

Ovals and circles are tricky

Which of Photoshop's Copy/Paste commands pastes clipboard content at the location it had in the original image instead of at the center of the document?

Paste in Place

Once you have made a selection, any changes you make apply exclusively to

The pixels within the selection

Moving a selected area

The rest of the image is not affected

The Move Tool

if you are working with a document that has only one layer, the piels you move will replace the pixels beneath them.

Making an oval selection

Elliptical Marquee Tool

Elliptical Marquee Tool

Select the Shape (click-n-drag)

Lasso Tool

freehand trace an area

The best selection tool for a specific area depends on characteristics of the area

(i.e. shape, color and size)

Quick-Select Tool>OPTIONS>AUTO ENHANCE

Auto-Enhance - Option that creates better quality selection with edges truer to the object

When resizing a selection, how do you constrain the image proportions to avoid distortion?

By adjusting the bounding box handles while pressing the Shift Key.

Manipulating Selections

Duplicate a selection

There are four primary types of selections. Which group allows you to make selections based on finding and/or following defined edges?

Edge-Based Selections

How do you rotate a selection?

Edit>Transform>Rotate

Four primary types of selections:

Geometric, Freehand , Edge-based and Color Based

Fine-Tune the Selection Area by Repositioning the Marquee While Creating It

Helpful techniques to make selecting easier

Elliptical Marquee Tool

Hold down Spacebar and drag the selection to move it (this allows you to position the selection more precisely if you weren't exactly in the right location when you started the "click-and-drag")

How does "Feathering" soften the hard edges of a selection?

It blurs the edges by building a transition boundary between the selection and the surrounding pixels, but it may cause some loss of details at the edges.

Color Based Selections

Magic Wand Tool

Which tool allows you to select an image area based on color similarity?

Magic Wand Tool

Which keyboard + mouse-click combination is helpful when making elliptical selections by allowing you to precisely position the selection area while you are creating it?

Mouse + Spacebar

Manipulating Selections

Move a selection

The Move Tool

Move he selected area to another part of the composition (or to another file)

Fine-Tune the Selection Area by Repositioning the Marquee While Creating It

Not always obvious where to start the "CLICK-AND-DRAG"

Moving a selected area

Once you've made a selection, any changes apply exclusively to the pixels within the selection

Quick Selection Tool

Point an area of an image and the tool automatically finds the edges

Edge-Based Selections

Quick-Selection Tool

Geometric Selections

Rectangular Marquee Tool - area Elliptical Marquee Tool - area Single Row Marquee Tool - one pixel line Single Column Marquee Tool - one pixel line

Elliptical Marquee Tool

Release the spacebar (But Not the Mouse) and continue to create the selection, Repeat process as needed until the shape/position of the selection are correct

Manipulating Selections

Reposition as you create a selection

Let's say you have selected an area in your image, by using one of the selection tools. If you click on the "Move Tool" and also press the Option Key, the icon changes to a "double arrow."

The "double arrow indicates that a duplicate will be made when you move the selection.

Moving Selected Pixels with Keyboard Shortcuts

The Pointer icon now has a pair of "scissors" (this indicates the selection will be cut from the current location once it is moved)

Quick Selection Tool

This tool is one of the easiest ways to make a selection

The Move Tool

Unless a section tool is active, click elsewhere will not deselect the active area

Making changes to an area within an image in Photoshop is a 2-step process

Use one of the selection tools to select the part of an image you want to change

Moving Selected Pixels with Keyboard Shortcuts

While the Elliptical Marquee Tool is selected and the Selection is active, press control/command key.

Elliptical Marquee Tool

area

Rectangular Marquee Tool

area

Magnetic Lasso Tool

combination of Lasso/Polygonal and is best used with area that have a good amount of contrast

Auto-Enhance

is slower, but the results are better

Single Column Marquee Tool

one pixel line

Single Row Marquee Tool

one pixel line

Edged Based Selections > Quick Selection Tool

paints by automatically finding/following defined edges

Color Based Selections>Magic Wand Tool

selects an image area based on color similarity

Polygonal Lasso Tool

sets anchor points in straight line segments


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