Writing ED material

Done by: Raqaya

Al_Busaidi

ID: 90535

PHOTOSHOP

Table of ContentsInstructio

n Introducti

on Lesson

sQuiz

Instruction

Action buttons:

To move back

To move forward

To move to home slide

Introduction

As you work with Adobe Photoshop,

you’ll discover that there is often more

than one way to accomplish the same

task. To make the best use of the

extensive editing capabilities in these

programs, you first must learn to

navigate the work area.

Lessons

Working with Selections

Masks and Channels Adobe

Basic Photo Corrections

Working with Selecti

ons

Working with Selections

Overview

Sections

practice

Learning how to select areas of an image is

of primary importance— you must first

select what you want to affect. Once you’ve

made a selection, only the area within the

selection can be edited. Areas outside the

selection are protected from change.

Overview

section1: Practicing making selectionsection2: Moving selection

contentssection3:Selecting with the

magic wand tool

Sections

section1: Practicing making selections

In this section, you’ll experiment with making

selections before you begin working in earnest

on your sample files. By working with the tools

in a practice session, you’ll understand better

how the basic tools work and how to use them.

You’ll also learn about selecting and moving as

a two-step process. In Photoshop, you first

select the part of an image you want to move

with one of the selection tools. After you select

it, you can then use another tool to move the

selected pixels to another location.

DB

CA

A. Marquee toolB. Move toolC. Lasso toolD. Magic wand tool

sections

1.1: Selecting and deselecting an area of an image.

1.2: Repositioning a selection border while creating it.

section1: Practicing making selection

You’ll start practicing selection techniques using the

rectangular marquee tool.

2. Drag diagonally from the upper left corner to the lower

right corner of the book to create a rectangular selection.

1. In the toolbox, select the rectangular marquee tool.

You can move a selection border after you’ve drawn it.

1.1: Selecting and deselecting an area of an image.

3. Drag from the book to a different area of the image window.

Note: Repositioning techniques for selection borders work with any of the marquee, lasso, and magic wand tools.

4. Choose Edit > Deselect. Or, you can deselect by clicking

another area in the window, outside the selection border.

1. Select the zoom tool, and click the black oval on the right

side of the image window as needed to zoom in to at least

100% view.2. Select the elliptical marquee tool hidden under the rectangular

marquee tool.

1.2: Repositioning a selection border while creating it.

3. Move the pointer over the oval, and drag diagonally across

the oval to create a selection.

4. Still holding down the mouse button, hold down the

spacebar on your keyboard and drag the selection.

5. Carefully release the spacebar, and continue to drag, trying

to make the size and shape of the selection match the oval

as closely as possible.

6. When the selection border is positioned and sized correctly,

release the mouse button.

Now that you’ve had some experience with a couple of

methods of making selections, you’re ready to start using

selections to make changes in your image. In the previous

procedures, you made selections with various tools and

used different keyboard combinations to help you make

them, but you did not change the image.

section2: Moving selection contents

sections

2.1: Selecting from a center point.

2.2: Moving and changing the pixels in a selection.

2.3: Moving and duplicating simultaneously.

section2: Moving selection contents

1. In the toolbox, select the zoom tool.

2. Scroll to the globe in the lower left area of the image, and click

the zoom tool to increase the magnification to about 300%.

3. In the toolbox, select the elliptical marquee too.

2.1: Selecting from a center point.

4. Move the pointer to the approximate center of the globe.

5. Click and begin dragging. Then without releasing the mouse

button, hold down Alt (Windows) or Option (Mac OS) and

continue dragging the selection to the outer edge of the globe.

6. When you have the entire globe selected, release the mouse

button first and then release Alt or Option (and the Shift key,

if you used it, too).

1. Choose View > Fit on Screen to adjust the magnification so

that the entire image fits within the image window.

2. In the toolbox, select the move tool. Notice that the globe

remains selected.

2.2: Moving and changing the pixels in a selection.

3. Position the pointer within the globe selection.

4. Drag the globe above the book image, somewhat close to

the right edge.

5. Choose Image > Adjustments > Invert.

The colors making up the globe are inverted, so that it is now

effectively a color negative the original.

1. Using the move tool, hold down Alt (Windows) or Option

(Mac OS), and position the pointer within the globe

selection. 2. Continue holding down Alt or Option, and drag a duplicate

of the globe down and to the right. Release the mouse

button and Alt or Option, but do not deselect the duplicate

globe.

2.3: Moving and duplicating simultaneously.

3. Choose Edit > Transform > Scale to activate a bounding box

around the selection.

4. Hold down Shift and drag one of the corner points to enlarge

the globe so that it is larger than the original by about half.

Then press Enter to commit the transformation and hide the

bounding box.

5. Hold down Shift+Alt (Windows) or Shift+Option (Mac OS),

and drag a new copy of the second globe down and to the

right.6. Repeat steps 3 and 4 for the third globe, making it about

twice the size of the first one.

7. When you are satisfied with the size and position of the third

globe, choose Select > Deselect, and then choose File >

Save.

1. Select the magic wand tool.

2. In the tool options bar, enter 70 in the Tolerance text box to

increase the number of similar tones that will be selected.

3. Using the magic wand tool, click what looks like the surface

of the large number “5” image.

section3:Selecting with the magic wand tool

sections

4. To select the remaining area of the number “5,” hold down

Shift, so that a plus sign appears with the magic wand

pointer, indicating that whatever you click will be added to

the current selection. Then click one of the unselected areas

of the blue number “5.”

Initial selection Adding to selection(Shift key depressed)

Complete selection

5. Continue adding to the selection until all the blue areas are

selected.

6. With all of the “5” selected, hold down Ctrl (Windows) or

Command (Mac OS) and drag the number to the area to the

upper left of the book image.

7. Choose Select > Deselect.

practice

Use lasso tool to select the pen and change the position of the pen.

lessons

Masks and

ChannelsAdobe

Masks and Channels Adobe

Overview

Sections

practice

Adobe Photoshop uses masks to isolate

and manipulate specific parts of an

image. A mask is like a stencil. The

cutout portion of the mask can be

altered, but the area surrounding the

cutout is protected from change. You

can create a temporary mask for one-

time use, or you can save masks for

repeated use

Overview

Section1: Creating a quick mask

Section2: Editing a quick mask

Section3: Creating a gradient mask

Sections

1. Select the magic wand tool.

2. In the tool options bar, enter 12 in the Tolerance text box.

3. Click anywhere in the white area of the egret to begin

the selection process.

Section1: Creating a quick mask

4. To extend the selection, hold down Shift and click the magic

wand on another white portion of the egret.

Magic wand selection Selection extendedsections

5. Select the Quick Mask mode button in the toolbox. By

default, you have been working in Standard mode.

A. Standard mode

B. Quick Mask modeQuick mask selectionshowing red overlay

Next, you will refine the selection of the egret by

adding to or erasing parts of the masked area. You’ll

use the brush tool to make changes to your quick

mask. The advantage of editing your selection as a

mask is that you can use almost any tool or filter to

modify the mask. (You can even use selection tools.)

In Quick Mask mode, you do all of your editing in the

image window.

Section2: Editing a quick mask

sections

1. To make the foreground color white, select the Switch

Foreground and Background Colors icon above the

foreground and background color-selection boxes.

2. Select the zoom tool and magnify your view of the image, if needed.

3. Select the brush tool.

4. In the tool options bar, make sure that the mode is Normal.

Then click the arrow to display the Brushes pop-up palette,

and select a medium-sized brush, such as one with a

diameter of 13 pixels.

5. Using the brush tool, begin painting over the red areas within

the egret’s body. As you paint with white, the red areas are

erased.

Unedited mask Painting with white Result

6. Continue painting with white to erase all of the mask (red)

in the egret, including its beak and legs.

Standardmode

Edited mask inStandard mode

Quick mask selection

7. Once you’ve erased all of the red areas within the egret, click

the Standard mode icon again to view your quick mask as a

selection.

8. If necessary, zoom out so that you can see the entire image.

1. In the Channels palette, create a new channel by clicking the

New Channel button at the bottom of the palette.

2. Double-click the Alpha 1 channel and type Gradient to

rename it.

Section3: Creating a gradient mask

3. Select the gradient tool.

sections

4. In the tool options bar, click the arrow to display the

Gradients picker and select the Black, White gradient.

5. Hold down Shift to keep the gradient vertical, and drag the

gradient tool from the top of the image window to the bottom

of the window.

practice

Extract the object from its background for this picture.

lessons

Basic Photo

Corrections

Basic Photo Corrections

Overview

Sections

practice

Adobe Photoshop includes a variety of tools

and commands for improving the quality of a

photographic image. This lesson steps you

through the process of acquiring, resizing,

and retouching a photo intended for a print

layout. The same workflow applies to Web

images.

Overview

Section1: Straightening and cropping an image

Section3: Adjusting lightness with the dodge tool

Sections

Section2: Replacing colors in an image

1. select the crop tool. Then, in the tool options ensions (in

inches) of the finished image: For Width, type 2 and for

Height type 3.

Section1: Straightening and cropping an image

2. Draw a marquee around the image. As you drag, the

marquee retains the same proportion as the dimensions

you specified for the target size (2 x 3).

sections

3. In the tool options bar, make sure that the

Perspective check box is not selected.

4. In the image window, move the pointer outside the crop

marquee, so that it appears as a curved double arrow. Drag

clockwise to rotate the marquee until it is parallel with the

edges of the pictured window frame.

5. Place the pointer inside the crop marquee, and drag the

marquee until it contains all the parts of the picture you

want shown to produce an artistically pleasing result. If you

also want to adjust the size of the marquee, drag one of the

corner handles.

Initial crop marquee Marquee rotated Marquee moved Marquee resized

6. Press Enter. The image is now cropped, and the cropped image now

fills the image window, straightened, sized, and cropped according to

your specifications.

Image cropped

1. Select the rectangular marquee tool, and draw a selection

border around the blue wall at the top of the image.

Section2: Replacing colors in an image

2. Choose Image > Adjustments > Replace Color to open the

Replace Color dialog box. By default, the Selection area of

the Replace Color dialog box displays a black rectangle,

representing the current selection.

sections

A B C

A. Single-color eyedropper tool

B. Eyedropper plus tool

C. Eyedropper minus tool

3. Select the first (single-color) eyedropper tool in the

Replace Color dialog box and click anywhere in the blue-

wall area of the image window to select all of the area with

that color.

4. In the Replace Color dialog box, select the eyedropper-plus

tool, and drag over the other areas of the blue wall until

the entire wall shape is highlighted in white in the dialog

box.

5. Adjust the tolerance level of the mask by dragging the

Fuzziness slider or typing 80.

6. If there are any white areas of the mask display in the

dialog box that are not part of the wall, select the

eyedropper-minus tool and click in the black area around

the selection in the Replace Color dialog box to remove

most of the white.

7. In the Transform area of the Replace Color dialog box, drag

the Hue slider to –40, the Saturation slider to –45, and the

Lightness slider to 0.

8. Click OK to apply the changes.

1. In the toolbox, select the dodge tool.

Section3: Replacing colors in an image

2. In the tool options bar, select the following settings:

For Brush, select a fairly large feathered brush on the Brush

pop up palette, such as 27. Then click outside the palette to

close it.

In the Range pop-up menu, select Highlights.

For Exposure, type or use the pop-up slider to enter 15%.sections

3. Using vertical strokes, drag the dodge tool over the window

curtains to bring out the details. You don’t always need to use

vertical strokes with the dodge tool, but they work well with

this particular image. If you make a mistake or don’t like the

results, choose Edit > Undo and try again until you are

satisfied with the results.

Original Result

practice

Adjusting saturation for this picture with the sponge tool

lessons

Quiz

1.Once you’ve made a selection, what

area of the image can be edited?

Review the answer

Review the answer

2. How do you add to and subtract from a

selection?

Review the answer

3. What is the benefit of using a quick mask?

Review the answer

4. What happens to a quick mask when

you deselect it?

5. What does resolution mean?

Review the answer

6. How can you use the crop tool in photo

retouching?

Review the answer

1. Only the area within the selection

can be edited.

Back

Back

2. To add to a selection, hold down Shift, and

then drag or click the active selection tool

on the area you want to add to the

selection. To subtract from a selection,

hold down Alt (Windows) or Option (Mac

OS), and then drag or click the active

selection tool on the area you want to

remove from the selection.

Back

3. Quick masks are helpful for creating

quick, one-time selections. In

addition, using a quick mask is an

easy way to edit a selection using the

painting tools.

Back

4. The quick mask disappears when you

deselect it.

Back

5. The term resolution refers to the number of

pixels that describe an image and establish

its detail. The three different types of

resolution include image resolution,

measured in pixels per inch (ppi); monitor

resolution, measured in dots per inch (dpi);

and printer or output resolution, measured

in ink dots per inch.

6. can use the crop tool to trim, scale,

and straighten an image.

Back