Free PDF Manual Guide

In this portion of the class you will learn how to set up your workspace.
1. Set up the workspace. From the Window menu select Tools, Options, Color and History. A checkmark appears next to the words when they are selected and their palettes should be visible on the Desktop. Select Rulers from the View menu. This will place a measuring scale on the top and left side of imagery and is a feature you may find helpful.
2. From Edit > Preferences (Photoshop > Preferences in Mac OSX) select Display and Cursors. A window opens where you may adjust how the cursor is displayed with various tools. For painting tools select Full Brush Tip and click on the Show crosshair in brush tip option. This will show the exact size, shape and center of all painting tools when one is in use. For other tools, select standard. This will show the icon for the cursor when the tool is in use.
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Adobe Photoshop CS3 is a popular image editing software that provides a work environment consistent with Adobe Illustrator, Adobe InDesign, Adobe ImageReady, and other products in the Adobe Creative Suite. This tutorial is an introduction to using Adobe Photoshop. Here you will learn how to get started, how to use the interface, and how to modify images with basic Photoshop tools.
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The ToolBox contains different cursor tools that allow you to perform a variety of operations on your image. They can all be chosen by clicking on the button in the Box, but also by typing the letter that is given in brackets in the description below. Some of them, with a small arrowhead at the bottom right corner, have multiple choices, which you also will see from the list below. The lower part of the ToolBox contains control areas for colour selection, and different display options. Some tools in the toolbox have options that appear in the context-sensitive Options bar that will appear at the top of the window just below the Menu bar. Leaving the cursor on a button will show the name of the tool as well as the shortcut key in brackets. To save space, I will only describe the tools that are useful when working with “scientific” images.
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Photoshop is a graphic editing tool that allows the user to create and manipulate images for print, the web, and other media. It is a powerful tool and this handout only introduces the basics; many of the tools need to be explored by the user to see all of their capabilities.

Tools Found in the Toolbox
The tools in the toolbox let you select, paint, edit, and view images. Other tools are used to choose foreground and background colors, create quick masks, and change the screen display mode. Many tools have associated Brushes and Options Palettes, which let you define the tools’ painting and editing effects.
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Open application
The first step, of course, is to open the application. In the IT lab, you can find Photoshop in the folder marked Adobe in the programs menu (from the start menu). It may also be located in a start menu folder called Graphics.

Once you have opened the application (after a few moments of loading time), the Photoshop interface will appear. There are many complex elements of the interface, and for reasons of both saving space in this tutorial and keeping things basic, I’ll only show you the toolbars and options panes you need to perform the most basic tasks in Photoshop. If you ever notice that some of these elements are missing, simply go to the window menu and select them.
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Photoshop is a graphics program used by film and videomakers to create graphic files for use on the Web, in CD-ROMs, as animation files, or for import into full motion video projects. You may also use Photoshop to create original promotional materials such as posters, tape cases, and one sheets for your film or video projects. Original images can be created in Photoshop using drawing and painting tools. You can also scan images into Photoshop or import/scan photos, slides, negatives, or video stills for manipulation in Photoshop.
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This handout provides an introduction to Photoshop, a popular image-editing application. This document covers the Photoshop interface, tools and palettes, working with selections and text, color correcting and resizing images, and managing documents.

Objectives
The learning objectives of this workshop are:
• Start PhotoShop and use the basic tools.
• Retouch images.
• Save files in different formats.
• Work with layers.
• Prepare graphics for the World Wide Web.
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Introduction
Photoshop is the industry-standard image rendering software. You can use Photoshop to create customized graphics, edit photographs and make flyers and images for print as well as for the web. This handout provides a simple how-to guide to familiarizing yourself with the Photoshop environment.
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This chapter covers the heart and soul of image processing for just about any astronomical image. You will learn how to apply the principles of the Zone System using Photoshop® CS (or later). Other image processing programs, such as Picture Window Pro and Paint Shop Pro, include similar tools but the Levels and Curves tools in Photoshop® are powerful and fluid. Photoshop® CS adds a critically important feature: the ability to use layers and other tools with 16-bit images. Since 16-bit images contain up to 256 times as much information as 8-bit images, this is a very important feature for CCD image processing.
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The following is intended as an introduction to Paint.Net and an explanation of how to use the main tools. It is not meant as a guide to fixing images, because I am still very much a beginner in this area. More information can be obtained from the material in the Help file, and the tutorials and helpful hints in the on-line Forum. Those of you, who have already done some editing with Photoshop or other imaging programs, will find it much easier than those just starting out. If you don’t want to do any more than a slight tweaking, straightening and cropping of your photos then a program like Picasa is probably all you really need. If you want more control over the results, you need an imaging and photo manipulation program like Paint.Net.
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