Tài liệu Photoshop cs5 by Dayley part 1 pps

Part I Getting Started with Adobe Photoshop CS5 IN THIS PART Chapter 1 Introducing Adobe Photoshop CS5 Chapter 2 Understanding the Photoshop Workspace Chapter 3 Image Basics Chapter 4 Understanding Colors, Histograms, Levels, and Curves Chapter 5 History and Actions Chapter 6 Using Bridge to Organize and Process Photos 04_584743-pp01.indd 104_584743-pp01.indd 1 5/3/10 10:13 AM5/3/10 10:13 AM 04_584743-pp01.indd 204_584743-pp01.indd 2 5/3/10 10:13 AM5/3/10 10:13 AM 3 CHAPTER Introducing Adobe Photoshop CS5 IN THIS CHAPTER Brief introduction to Photoshop CS5 Reasons to use Photoshop CS5 New features introduced in Photoshop CS5 I f you are reading this book, you likely have access to one of the most complicated and complex software applications available. Don’t let that discourage you though. Photoshop is also a powerful and extremely fun application to use. Photoshop has throngs of fans all over the globe. Over the years, Photoshop has become the pinnacle software application for image editing. In fact, if you look up Photoshop at wiktionary.org, you find the term photoshop is actually a verb meaning “to digitally alter a picture or photograph.” Photoshop draws such a big crowd because it provides amazing results when you are editing images and yet is fairly intuitive to use such that even casual users can get pretty good results without much effort. Also, as digital imag- ing has advanced over the years, Photoshop has kept pace and even led the advancements in many areas. The purpose of this chapter is to give you a brief introduction to Adobe Photoshop CS5, when to use it, and what new features have been added since CS4. Chapter 2 dives into the nuts and bolts of Photoshop’s application workspace. The Versatile World of Photoshop The simplest description of Photoshop is “a digital image-editing applica- tion.” That description doesn’t come close to Photoshop’s capabilities. Photoshop provides the standard color and lighting correction capabilities historically associated with photo editing, but it also provides filtering, paint- ing, masking, layering, and many more tools that allow you to take image editing to the next level. 05_584743-ch01.indd 305_584743-ch01.indd 3 5/3/10 10:14 AM5/3/10 10:14 AM Part I: Getting Started with Adobe Photoshop CS5 4 Photoshop comes in two versions. The standard Photoshop edition provides all the functionality you need to create, enhance, and correct digital images. The extended edition, which costs more, provides additional functionality to work with 3D objects, video, and digital animation. The extended edition is worth the money if you are working with 3D objects or need to add color/ lighting corrections and artistic effects to video. If you are not working with 3D objects or video, the standard edition is all you need. The following sections discuss the uses of Photoshop as well as a few times where you need to use additional applications with Photoshop. The purpose of the section is to give you a glimpse of what Photoshop is for before diving into using it. Of course, the only real way to understand Photoshop’s capabilities is to delve into them as you follow along with the next 30 chapters in this book. When to use Photoshop Photoshop has so many tools and so much power that it can do an almost unlimited number of things. The following list describes the most common tasks that Photoshop is used for to help you get an idea of when to use it: l Photo corrections: Photoshop’s strength lies in the ability to correct digital images to restore the original color and lighting as well as to correct problems introduced by camera lenses. These features of Photoshop are covered in Chapter 13. l Photo enhancements: Photoshop also provides tools that allow you to enhance photos. For example, you can add a blur to soften a portrait or use a sharpening filter to remove motion blur. Photoshop also is great at fixing scratches and dust marks on older images. These concepts are discussed in Chapters 14 and 15. l Photo compositions: One of Photoshop’s strengths is the ability to combine multiple images to create a single image or composition. A common use of Photoshop is to take a headshot from one image and place it into another. Photoshop also allows you to merge several photos that were taken at different horizontal angles from the same spot and turn them into a single panoramic image. Photo compositions are discussed in Chapter 21. l Artistic effects: One of the most fun features of Photoshop is the ability to use different filters and warping tools to apply artistic effects to images. The combination of numerous tools and filters in Photoshop means that the only limitation you have with adding artistic effects is your own creativity. The tools used for artistic effects are covered in Chapters 19 and 20. l Painting: Photoshop has always been a fairly good painting application, but with the addition of the wet brush capability in CS5, Photoshop is now one of the best applications available to create digital painting. What puts Photoshop ahead of the competition is that many of the powerful features, such as the layers and masks, also are available for use with the painting tools. Also, the painting brushes are integrated into many of the other tools in Photoshop. Chapter 16 discusses the painting tools. 05_584743-ch01.indd 405_584743-ch01.indd 4 5/3/10 10:15 AM5/3/10 10:15 AM Chapter 1: Introducing Adobe Photoshop CS5 5 l Creating vector artwork: Photoshop also is an excellent application to use when creating vector artwork. The path tools allow you to quickly create and manipulate vector artwork. You also can add vector artwork to raster images. Vector artwork, including vector text, is discussed in Chapters 17 and 18. l Adding text to images: Photoshop provides tools that allow you to add text to images. The text can be resized, warped, and adjusted to provide some stunning visual effects to images. Chapter 18 discusses adding textual elements to images. l Creating Web images: Another area where Photoshop excels is preparing images for the Web. Photoshop provides utilities that allow you to quickly format images with the appro- priate size, file format, and colors for use in Web pages. Photoshop also provides some tools you can use to slice an image into clickable sections and provides the HTML code necessary to utilize the slices in a Web page. Outputting to the Web is discussed in Chapter 30. l Print preparation: Photoshop often is used to prepare images for printing by converting the color mode to CYMK, adding spot colors, and creating color separations. These topics are covered in Chapters 11 and 29. l Creating 3D objects: Photoshop has the capability to create and manipulate 3D objects. Although it is not the best utility for creating 3D objects, it is very good at manipulating them and then applying them to 2D images. The 3D capabilities of Photoshop are covered in Chapters 22, 23, and 24. l Adding textures to 3D objects: Photoshop has a big advantage over other 3D applica- tions at applying textures to 3D objects. With Photoshop’s filter and painting capabilities, you can edit the textures of your 3D objects in ways that you may not have thought possi- ble. Chapter 23 discusses creating and enhancing 3D textures. l Video corrections: Just as with 3D modeling, Photoshop should not be your choice for creating video projects; however, using Photoshop’s color, lighting, and filter effects, you can quickly apply corrections to video and even add some artistic effects. Chapter 27 dis- cusses applying corrections and effects to video files. l Animating images: Another fun feature of Photoshop is the ability to add animation to your images. Animated images can give life to Web pages and allow you to create short animated movies. Chapter 28 discusses animating images. When not to use Photoshop Believe it or not, Photoshop is not designed to do everything, and you should use a different appli- cation for those tasks after you have created/adjusted the image in Photoshop. For example, use another program for the following: l Word processing: Most word processing applications allow you to add images to docu- ments created with those programs, and although Photoshop supports adding text to images, it doesn’t support text editing all that well and can’t handle text flowing from one page to another. You should use Photoshop to work with the images and then import them into the word processor. 05_584743-ch01.indd 505_584743-ch01.indd 5 5/3/10 10:15 AM5/3/10 10:15 AM Part I: Getting Started with Adobe Photoshop CS5 6 l Business graphics: Photoshop doesn’t do charts and presentations very well, but you can create great images in Photoshop and then use them in business applications. l Page layout: Applications such as Adobe InDesign are much better adept at laying out most brochures, flyers, and documents that are mostly textual. You should create the images in Photoshop and then import them into the layout application. l Vector art: Although Photoshop has a lot of capability when it comes to creating vector paths, Illustrator is much better application for working with clipart and designing adver- tisements, flyers, and one-page layouts that have multiple vector objects. What’s New in Photoshop CS5 Adobe has added several great new features to Photoshop CS5 that make tools easier to use, extend capabilities, and add lots of justification for upgrading. These new changes are discussed through- out the book. The purpose of this section is to describe the biggest changes and let you know where in the book you can find more information about them: l Sticky Workspaces: The workspaces in Photoshop now save themselves when you switch between them. That way, your panels and other settings stay the same way you left them when you come back. Photoshop also provides a reset option to reset the workspace to the default. See Chapter 2. l Workspace Switcher: Adobe has modified the method to switch between workspaces with a new option in the application bar that allows you to access workspaces more easily. See Chapter 2. l Mixer Brush: One of the coolest features in Photoshop CS5 is the addition of the Mixer Brush to the painting tools. The Mixer Brush mixes colors in the brush and on the canvas as you apply strokes to the document, allowing you to create realistic painting effects. This one new feature makes Photoshop CS5 worth the upgrade. Chapter 16 covers the Mixer Brush in detail. Figure 1.1 shows an example of using the Mixer Brush to add brush strokes to a photograph to create a paint effect. Notice that by using the Mixer Brush, the colors in the image have been spread like brush strokes. l Bristle Brushes: Another feature that adds to the painting functionality in Photoshop is the addition of realistic paint brushes. The new Bristle Brush tips allow you to define paint stroke behavior that mimics real paint brushes by allowing you to define the number of bristles, stiffness, shape, and other behaviors that simulate real-life brushes. Combined with the Mixer Brush tool, the Bristle Brushes elevate Photoshop CS5 to one of the pre- mier digital art applications. See Chapter 16. Figure 1.2 shows the various new Bristle Brushes. 05_584743-ch01.indd 605_584743-ch01.indd 6 5/3/10 10:15 AM5/3/10 10:15 AM Chapter 1: Introducing Adobe Photoshop CS5 7 FIGURE 1.1 The new Mixer Brush allows you to treat the pixels in an image like wet paint as you apply brush strokes, significantly increasing Photoshop’s ability as a painting application. FIGURE 1.2 The new Bristle Brushes allow you to define bristle length, shape, stiffness, and behav- ior, providing realistic brush effects. 05_584743-ch01.indd 705_584743-ch01.indd 7 5/3/10 10:15 AM5/3/10 10:15 AM Part I: Getting Started with Adobe Photoshop CS5 8 l Bristle Brush Preview: The new Bristle Brushes also come with a preview window that simulates the movement and pressure of the brush as you apply brush strokes. As you put more pressure on the brush, the preview shows the bristles as they fan out. The preview is especially useful if you are using a stylus that supports tilt and pressure, because the pre- view shows you the behavior of the brush when it is tilted and as you apply more pres- sure. Figure 1.3 shows some examples of the Bristle Brush preview window. FIGURE 1.3 The Bristle Brush preview window displays the behavior of the brush in real time as you make brush strokes, including the tilt of the brush and how the bristles fan out with more pressure. l Mini Bridge: A new Mini Bridge panel has been added to Photoshop. The Mini Bridge panel allows you to quickly find and open files in Photoshop using Navigation and Content panes similar to those in Bridge. You no longer need to switch between Photoshop and Bridge to find files. See Chapter 6. Figure 1.4 shows the look of the Content and Navigation panes in the Mini Bridge panel. 05_584743-ch01.indd 805_584743-ch01.indd 8 5/3/10 10:15 AM5/3/10 10:15 AM Chapter 1: Introducing Adobe Photoshop CS5 9 FIGURE 1.4 The Mini Bridge panel provides a simple interface you can use to more easily find and open files in Photoshop. l Puppet Warp tool: The Puppet Warp tool is another fun feature in Photoshop CS5. Using the Puppet Warp tool, you can lock pieces of the image to remain static and then adjust points in the no static sections. As you adjust the points, the image is warped as if you were pulling on a piece of cloth. The result is that you can take an object such as a person and warp only the arms or legs as you would a puppet. See Chapter 19. Figure 1.5 shows an example of using the Puppet Warp tool to change the position of a spider’s legs. Notice how the locking pins hold the rest of the image in place while the spider’s legs are warped. 05_584743-ch01.indd 905_584743-ch01.indd 9 5/3/10 10:15 AM5/3/10 10:15 AM Part I: Getting Started with Adobe Photoshop CS5 10 FIGURE 1.5 The Puppet Warp tool allows you to warp and change the position of specific areas of the image without affecting the rest of the pixels. l Content-Aware Fill and Spot Healing: Adobe has enhanced the Spot Healing Brush tool so you can enable the Content-Aware feature. This feature takes into account the pixels in the area being healed and tries to match other similar patterns in the image. You also can create a Content Aware Fill that replaces a selection with a content aware patch. The result is that you can quickly remove content from an image without the anomalies that you used to get. It’s a situation of “now you see it, now you don’t.” See Chapter 15. Figure 1.6 shows an example of removing an elk from an image using the Content-Aware Spot Healing. Using the Content-Aware Spot Healing feature, you can simply paint loosely over an object and Photoshop does the rest. Notice how cleanly the animal is removed and replaced with grass similar to the content around it. 05_584743-ch01.indd 1005_584743-ch01.indd 10 5/3/10 10:15 AM5/3/10 10:15 AM [...]... create a variety of 3D shapes by utilizing vector paths A great use of the Repoussé tool is to create 3D text art from vector text layers Repoussé is covered in detail in Chapter 22 Figure 1. 7 shows the Repoussé tool along with an example of turning 2D text into a 3D object 11 05_584743-ch 01. indd 11 5/3 /10 10 :15 AM Part I: Getting Started with Adobe Photoshop CS5 FIGURE 1. 7 Using the Repoussé tool,... more about the 3D axis widget Figure 1. 8 shows the new 3D axis widget FIGURE 1. 8 The 3D axis widget provides a simple tool where you can easily grab an axis of a 3D object with the mouse and drag to scale, rotate, and move the object along that axis 12 05_584743-ch 01. indd 12 5/3 /10 10 :15 AM Chapter 1: Introducing Adobe Photoshop CS5 l Adobe Camera Raw 6.0: Photoshop CS5 comes with a new version of Adobe... single-image access to HDR Toning for 8-bit, 16 -bit, or 32-bit images HDR images are discussed in Chapter 3 Nest layer groups: Photoshop CS5 now supports nested layer groups ten levels deep instead of just five 13 05_584743-ch 01. indd 13 5/3 /10 10 :15 AM Part I: Getting Started with Adobe Photoshop CS5 l Delete All Empty Layers command: You can now delete all empty layers by selecting File ➪ Scripts ➪ Delete... refinement of the edges of selections These brushes allow you to make localized refinements to the edges of your mask 14 05_584743-ch 01. indd 14 5/3 /10 10 :15 AM Chapter 1: Introducing Adobe Photoshop CS5 l Paste in Place: In Photoshop CS5, the Edit ➪ Paste Inside command has been replaced by an Edit ➪ Paste Special submenu containing the following options: Paste In Place, Paste Into, and Paste Outside... contains pixels that are copied from another Photoshop document If the clipboard contains Photoshop data, Photoshop tries to paste the selection into the same relative location in the target document as it occupied in the source document Summary This chapter introduced Photoshop CS5 by discussing the general uses of Photoshop and the new features in Photoshop CS5 Photoshop can be used for a variety of purposes... you learned the following: l Photoshop can be used to edit, enhance, and create images in several ways l Photoshop CS5 includes a new painting tool and brushes that allow you to treat an image as if it were a wet paint canvas l Adobe has improved the set of 3D tools that allow you to use Photoshop s editing capabilities on 3D objects 15 05_584743-ch 01. indd 15 5/3 /10 10 :15 AM ... in several layers Layers are covered in Chapter 10 , and scripts are covered in Chapter 31 l Modify opacity and fill of multiple layers: Photoshop CS5 allows you to change the opacity and fill values for multiple selected layers This has been a needed feature for a long time Layers are discussed in Chapter 10 l Layer Mask from Transparency: Photoshop CS5 includes a new menu command, Layer ➪ Layer Mask... unwanted artifacts See Chapter 14 l Character Styles: A new Character Styles panel has been added to Photoshop CS5 that allows you to define type styles as presets that can be saved and reused later You can save details such as the font, size, tracking, color, and kerning See Chapter 18 for more details l Paragraph Styles: A new Paragraph Styles panel has been added to Photoshop CS5 that allows you to define...Chapter 1: Introducing Adobe Photoshop CS5 FIGURE 1. 6 The Content-Aware Spot Healing feature allows you to easily use painting strokes to remove elements from an image and replace them with content similar to the content around where the object was located l Repoussé: Another major advancement in Photoshop CS5 is the addition of the Repoussé tool Repoussé allows... of the ring shows the color of the pixel directly below the Eyedropper See Chapter 4 for more information about the Eyedropper tool l Scrubby Zoom option in Zoom tool: The Zoom tool now has a Scrubby Zoom option that, when enabled, allows you to zoom in and out by clicking the image, holding down the mouse button, and dragging the mouse to the left or right See Chapter 2 for more info about the Zoom . Photos 04_584743-pp 01. indd 10 4_584743-pp 01. indd 1 5/3 /10 10 :13 AM5/3 /10 10 :13 AM 04_584743-pp 01. indd 204_584743-pp 01. indd 2 5/3 /10 10 :13 AM5/3 /10 10 :13 AM 3 CHAPTER Introducing Adobe Photoshop CS5 IN THIS. text into a 3D object. 05_584743-ch 01. indd 11 05_584743-ch 01. indd 11 5/3 /10 10 :15 AM5/3 /10 10 :15 AM Part I: Getting Started with Adobe Photoshop CS5 12 FIGURE 1. 7 Using the Repoussé tool, you can. that axis. 05_584743-ch 01. indd 12 05_584743-ch 01. indd 12 5/3 /10 10 :15 AM5/3 /10 10 :15 AM Chapter 1: Introducing Adobe Photoshop CS5 13 l Adobe Camera Raw 6.0: Photoshop CS5 comes with a new version