Changing the Size of an Image

Changing the Size of an Image

Changing the size of an image is one of the most common tasks carried out in Photoshop. Whether you want to turn an 8x10 image into a 4x5 image, or enlarge a small wallet photo into a larger one, the place to start is the Image Size dialog box. To access the Image Size dialog box, follow these steps:

Click Image from the Menu Bar.

Click Image Size. The Image Size dialog box will open.

In the example below, you can see that the document size is approximately 14x10 inches with a resolution of 72 pixels/inches. To change this size, type in a new value for width or height. If the Constrain Proportions box is checked, the other value will change automatically. The Constrain Proportions option ensures that you won't distort your image when you resize it. You can see how the changes to the size of an image affects file size by examining the values displayed next to the words "Pixel Dimensions" at the top of the dialog box.

Changing the Canvas Size

The Canvas Size dialog box allows you to add or subtract working space from the current image. To access the Canvas Size dialog, follow these steps:

1. Click Image from the Menu Bar.
2. Click Canvas Size.
From here, you can change the values for width and height to modify the amount of canvas available. If the Relative checkbox is checked, you can simply enter the amounts by which you want to increase or decrease the size of the canvas instead of needing to calculate how big your image should be after the canvas is modified. Additional canvas is the color of the current background color. Subtracting from the canvas will effectively crop your image.

Working with Layer

Layers are a basic founding concept you need to understand when working with Photoshop. Each time you add something to your image (for example text or shapes), Photoshop will create it as a layer. It might help for you to think about layers as several sheets of transparencies, each with a different picture. Each layer is one smaller part within the bigger picture. Take the following as an example:

This is layer 1, a transparency with a black border and a red circle in the upper-left corner.	This is layer 2, a transparency with a green circle in the middle.	This is layer 3, our final transparency with a blue circle in the bottom-right corner.

If we place layer 2 (green circle) over layer 1 (red circle), and then place layer 3 (blue circle) over layer 2, we'll get an overlapping of colors within a single image. That's how layers work!

An animated example of the layers concept can be viewed here: Layers Animation

Working with Layers

The Layers palette is located on the right of the workspace, in the palette dock. All of your layers are displayed in hierarchical order on the Layers palette. From here, you can lock and hide layers, create new layers, work with layer groups, and format your layers. Here are some of the most commonly used functions on the Layers palette:

The Layers Palette

Layer Lock - allows you to lock a layer, or specific features within a layer. Eye icon - allows you to hide a layer. You can still work on a layer even though you can't see it. The Paintbrush icon - indicates which layer is currently selected. A layer must be selected before you can make any modifications to it. To select a layer, simply click it. Selecting a layer makes it visible. Dragging a layer to either to the New/Copy Layer or Delete Layer buttons on the bottom of the palette will copy or delete the layer. You can also rearrange layers. For example, in our color circle example, the blue circle could be placed beneath the red and green circles. To do this, you simply click and drag the layer to be above or below other layers in the Layers list.

Paintings

Painting Tools

Each of the expanded options (shown on the right) for Photoshop's painting tools can be accessed by holding down the mouse on a tool.

Using the Painting Tools

Brushes When working with all of the drawing tools (except the Gradient tool), the Brushes option is available in the toolbar to allow you to use different brushes and textures. You can also load one (or several) of Photoshop's included brush sets by clicking on the black triangle at the top right hand corner of the Brushes menu.
Airbrush Tool The Airbrush tool acts similar to an airbrush or a spray can. The longer you activate it in one place, the more color is applied.	Paintbrush Tool The Paintbrush tool behaves the same as the Airbrush tool except that pressure is kept constant.
Pencil Tool The Pencil tool is similar to the two tools mentioned above, except that the edges of the applied color are not fuzzy—using the Pencil tool produces hard edges.	Clone Tool The Clone tool allows you to copy a part of an image to another area of the image by pressing and holding the key while clicking on an image and then using the tool in another area. The Pattern Stamp tool is slightly different in that you may paste the copied image more than once (the Clone tool allots only one copy).
History Tool The History tool allows you to combine previous versions of your image with the current version. When working with an image, you may decide that you like some of the current changes as well as some of the past changes. You can combine the two by selecting the history state (from the History palette) that includes the old changes that you liked and using the History tool to paint the past image onto the current state.	Eraser Tool The default Eraser tool replaces the erased portion of the image with the current background color. When using the Background Eraser tool, however, the erased portion simply disappears. The Magic Eraser tool behaves similar to the Magic Wand tool in that it will select similar shades of a certain color and erase portions of the image with those colors and erase them.

Brush Dynamics The Brush Dynamics options may be accessed in the brush pallete, which is located on the right-hand side of the toolbars for all the painting tools (except for the Eraser and Gradient tools). Lots of cool effects can be created if you play around with these settings.
Gradient Tool The Gradient tool is a very simple way to paint a gradient between colors into your image. The default settings produce a linear gradient between the current foreground and background colors. Radial, angle, reflected, and diamond gradients are also available. Adding more colors and settings can be done in the Gradient tool's toolbar.

type of tool

The Type Tool is used to create text in Photoshop. is a feature used mostly with desktop publishing and the Web, as most people don't tend to print out home photos with text on the pictures.
To create text in Photoshop, follow these steps:

1. Open the image that you want to add text to.
2. Click the Type tool from the Tools Panel.
3. Click the document where you want the text to appear.
4. Type your text.

Type Examples

Photoshop provides many different options for writing text. To access these options, hold the mouse down on the Type Tool on the Tools Palette. The following options will appear.

Arched Text

1. Create a new image by selecting File > New. Make the image 400 pixels wide by 100 pixels high.
2. Create a new text layer by selecting the Type tool and clicking on the image.
3. Type "Example of ARC text," or whatever other text you want.
4. Click on the Create warped text button, next to the text color selector, in the toolbar.
5. Use the following values: Style: Arc, Bend: +20, Horizonal Distortion: -20, Vertical Distortion: -20. Click OK.

Vertical Text

1. Save this file to your computer: eagle.jpg.
2. Use the Marquee option and toggle the text orientation to vertical.
3. Use the following values: Verdana as the font family, 48 pt as the font size, and bold the text.
4. Type "EAGLE." Before you do anything else, move the marqueed type so that the bottom stroke of the letter "E" is on the eagle's eye.
5. Tap the Enter key, or click the checkmark button on the toolbar to commit your text.
6. Now Edit > Copy the marqueed text and Edit > Paste where appropriate.

Formatting Text

Once the Type Tool is selected, the following text options will open in the Options Bar:

• (insert image) - allows you to create a new text layer.
• (image) - allows you to change the orientation of your text from horizontal to vertical.
• - The first field defines the "font family" of the text (such as Times New Roman or Arial). The next field defines the point size of the text. The next option is to control anti-aliasing, or sharp or fuzzy the text looks. The next three boxes denote the alignment of the text within a preset space: left align, center, and right align. The solidly colored box represents the currently selected color, and the second to last button enables you to warp text over a preset path line. The last button on the toolbar toggles the Character and Paragraph palette. This palatte allows you to manipulate several type options, such as letter width and height, as well as including all the options available in the Type toolbar.
  

learning photoshop

how to open picture from Photoshop:

• On menu bar, click file.
• Click open.
• choose a file where you open your picture.

•  Then,click open.

Opening an Existing Image

To open an existing image, follow these steps:

• Click File from the Application Bar.

• Click Open.

• Navigate to your saved file.

• Click Open.

how to use photoshop

The Photshop workspace consists of five main components: the Application Bar, the Tools Panel, the Options Bar, the Document Window, and the Panel Dock. One of the nice things about using Photoshop is that its workspace interface is very similar to that of other products in the Adobe Creative Suite, for example Indesign and Illustrator.

The Application Bar

The Application Bar, new to Photoshop CS4, is located across the top of the screen. It contains the old menu bar, along with a number of other controls, for example a dropdown zoom menu, a button for launching Adobe Bridge, and a button for viewing extras. The menu bar contains controls for managing and editing files, manipulating images, managing layers, and more.

Tools Panel

The familiar Tools Panel contains a collection of tools for creating, selecting, and manipulating images. Tools that have a similar function are grouped together.

You can access more options for each tool by holding down the mouse on a tool.

Options Bar

The Options Bar is located below the Application Bar. The options change depending on the tool you have selected. For example, when you select the Type tool, options pertaining to text editing will appear across the bar.

Document Window

The Document Window displays the file you're working on.

Panel Dock

A vertical dock of panels is located on the right of the workspace. Panels help you manage and edit your images, allowing for quick and easy access to the most common controls for a particular task. By default, three panels will appear when you open Photoshop: the layers, adjustments and styles panels.
To access more panels, click Windows from the Application Bar, and click the panel you want to open. To hide a panel, click Windows from the Application Bar, and click the panel you want to hide.

What is Adobe Photoshop CS4

Adobe Photoshop CS4 is the leading digital image editing application for the Internet, print, and other new media disciplines. It is embraced by millions of graphic artists, print designers, visual communicators, and regular people like you. It's likely that nearly every picture you've seen (such as posters, book covers, magazine pictures, and brochures) has either been created or edited by Photoshop. The powerful tools used to enhance and edit these pictures are also capable for use in the digital world including the infinite possibilities of the Internet.
The newest version of Photoshop (CS5 Extended) includes features such as:

• Content Aware fill
• Puppet Warp
• Bristle Tips
• Easier HDR
• Mixer Brush
• and other.

It is almost impossible to use or even learn all of Photoshop's tools to their maximum benefit. Photoshop has been around since 1982! That's around 25 years of troubleshooting and advancing software. This workshop will go over the main features of the program so that you will feel confident to explore the remaining features on your own.