Graphics editing photoshop

Setting Preferences• Use the Preferences dialog box to customize how files are opened in Photoshop • Options include: – Using Open Recent to locate and open files recently worked on – C

Adobe Photoshop is a softwares that will enable the students to use the various

tools and effects available for photo editing

and graphic design

Because of the growth of technology in this day and age, it is necessary to have the ability to work with digital media This

presentation is an introduction to the basics

of Adobe Photoshop.

Where to Obtain Images

• Create original artwork in Photoshop

• Use images downloaded from the World Wide Web

• Use scanned images or images taken

with a digital camera

Understanding Images

• An image is made up of dots called

pixels

• In Photoshop, you can add, delete,

or modify individual pixels or

groups of pixels

• Number of PIXELS per square inch

• Monitors display 72 pixels/sq inch

• Printers are much higher

– 300 pixels/sq inch

• File size differences in 1X1 in

– Web 5,184 pixels

– Print 90,000 pixels

• Monitors display light directly

– Term RGB (Red Green Blue)

– Different monitors may display colors

differently

• Printing images

– Term CMYK (Cyan, Magenta, Yellow, blacK) – Colors will look different than on the screen

File Formats

Use Photoshop to open and create different kinds of file formats

Creating a New File

• Click File on the menu bar

Saving a File Options

• Use Save As to save a file under a

new name and to preserve a copy

of the original file

• Open a file in one file format

(e.g., BMP) and save it in another file format (e.g., JPG)

Setting Preferences

• Use the Preferences dialog box to customize how files are opened in Photoshop

• Options include:

– Using Open Recent to locate and

open files recently worked on

– Changing the Image Preview to

thumbnails

Opening a File

• Use the File Browser to open a file:

– Click the File Browser tab in the

palette well

– Navigate to the location of the file

– Double-click the file to open it in

Photoshop

Docked File Browser Palette

Palette well File Browser

tab

Examining the Photoshop

menu

Customizing the Workspace

• Customize the workspace by

positioning elements to suit your

working style

• To save a workspace:

– Click Window on the menu bar, point

to Workspace, click Save

Workspace, type a name, then click

Save

Using Tools

• Use tools in Photoshop to perform

actions (e.g., zoom, type text, etc.)

• Point to a tool to view a ScreenTip

that provides the name or function

of the tool

• Check the tool options bar to view

current settings for a selected tool

Using Tool Shortcut Keys

• Press and hold [Shift]

• Press the tool’s shortcut key (e.g., T for Type Tool)

• Continue to press [Shift] and the

shortcut key to cycle through a

tool’s hidden tools

• Palettes can be separated and

moved around the workspace

• Each palette contains a menu

History Palette

• The History palette contains

a record of each task

• Undo

– Takes you back one step

• Step Backward

– Takes you back one step at a time

• History Palette (displays steps)

– Open under WINDOW

• Revert

– Back to the last saved version

• SAVE OFTEN WITH DIFFERENT NAMES!

Practice Using Tools

• Create a new document

Let’s get creative!

• Select foreground

and background colors

• Choose the paint

brush

• Now the eraser

• Try the pencil

• Image, Image size

• Constrain proportions OFF

• Image, Image size

• Pixel width 200 (UNDO)

• Pixel height 200 (UNDO)

Let’s open a file to be edited

Use Filters for Special Effects!

• Open Willie

• Select a Filter

• Example:

• Artistic, Dry Brush

• Save file with

different name

• williedb

Go to the Toolbar, click on Image

→ Adjustments → Curves

Adjustments

Brightness & Contrast

Go to the Toolbar, click on Image →

Adjustments → Brightness/Contrast

The following tools are used to alter photos in order to bring out details and balance intensity.

Rotations

Go to the Toolbar, click on Image → Rotate Canvas

1 Find the Crop Tool in

the toolbox on the

left-hand side of the screen.

2 Select desired area 3 Click on Crop Tool

again to finalize.

The Crop Tool is used to remove unwanted space or material.

There are two methods to resize photos Resizing photos is a convenient

way to make sure the photo is the correct size for a project

Method 1: Go to the Toolbar,

click on Image → Image Size

Adjust width and height to

desired measurements This will

resize the entire image.

Method 2: Select desired layer, press Ctrl+T on keyboard.

Hold down the Shift key to maintain proportions This method will resize

only the selected layer.

Layers make it possible to add modifications that can be removed quickly and easily They can be added individually or can be created from an existing part of the document.

To insert a new layer: Go to the

Toolbar, click on Layer → New →

Layer.

To make a layer from the existing document: choose selected area with the marquee tool, right click selected area

and choose Layer via Cut/Copy.

*To make a layer

without deleting it,

click the eye.

• Tool to enable complex compositions

• Allows “stacking” of image parts

• Layers may be added and deleted at will

Understanding Layers

• What are layers?

– A section within an image that can be manipulated

independently

– Use layers to control

individual elements in a

document

Layers Palette

• The order in which the

layers appear in the Layers palette matches the order in which they appear in the

document

Layers Palette

Currently

active layer

Flattening Layers

• Save before flattening

• Save with new name after flattening

• Flattening is necessary for many

techniques including some file types

• Select Layers, Flatten layers

Magic Wand

The Magic Wand Tool is used to select all the colors in a certain range By changing

the tolerance, one can adjust the sensitivity between ranges.

Step 1: Click on the Magic

Wand Tool in the Toolbox

Step 2: Click the desired color area and experiment with the Tolerance level.

*By increasing or reducing the Tolerance, one can select more or less of the selected color range, respectively.

Shapes can be used to create a decorative touch to a picture.

Click on the Shape Tool in the Toolbox Select preferred shape Drag and drop on picture Use Text Box to add text if wanted.

Clone Stamp Tool

The Clone Stamp Tool is used to simultaneously copy portions of a photo onto a specific area.

Click on the Clone Stamp Tool in the Toolbox Alt+Click to select desired area

Click and hold to clone the selected portion.

Opacity changes the transparency of a photo.

The Opacity scale is

located on the lower

right-hand toolbox.

“Flipping” an image

• Image, Rotate Canvas

– 90 or 180

– Flip Horizontal or Vertical

• Copy “Lovett” below

– Image, rot image, flip vert.

• UNDO

Change Canvas Size

• For composite images, change canvas size on one image, paste and position extra images in one at a time

• Image, canvas size,

double ht, set “anchor”

as appropriate

– Default is center

– This example is upper left

More Tools for Selecting Image Parts

More Editing Tricks

– Brightness/Contrast

– Variations

– Sharpen an image

Sharpen an Image

• There are many options in Photoshop

• Try Filter, Sharpen, Smart Sharpen

– 100%, 0.2 pixels, Lens Blur

• Enlarge to view detail

View and Print Documents

• Use the Zoom tool to

change views—up to a

maximum of 1600%

• Use the Page Setup dialog

box to set printing options

Online Photoshop Resources