Photoshop CS4 for Dummies phần 10 pps

Source panel and select the Show Overlay option. The source frame appears as an overlay on the destination frame (see Figure 17-7). Figure 17-7: Show Overlay is very handy when cloning from frame to frame. If the Layer➪Video Layers menu is grayed out, open the Animation panel’s menu and select Convert to Timeline or click the button in the lower-right corner of the Animation panel to toggle from the panel’s Frame Animation mode. Keep in mind, however, that converting the panel also converts any active video clips. Converting a video clip to frame-based animation uses only the keyframes, not all frames. If you want to generate a frame-based animation using all frames, choose File➪Import➪Video Frames to Layers (see Figure 17-8). Figure 17-8: You can import video as a frame-based animation. 363 Chapter 17: Introducing Photoshop CS4 Extended 24 327258-ch17.qxp 8/20/08 7:05 PM Page 363 364 Part IV: Power Photoshop Measuring, Counting, and Analyzing Pixels Designed for researchers and scientists, the measuring capabilities in Photoshop CS4 Extended are quite powerful. You can measure just about any- thing and count the number of whatevers in a technical image, perhaps from a microscope or telescope. Measuring length, area, and more If you know the exact size of any element in an image, you can then discover just about anything you want to know about anything else in that image. The key is to set the measurement scale, as shown in Figure 17-9. Figure 17-9: Drag a known distance; set the measurement scale. In this example, we know the knee is 2.5 inches wide, and we can see in the Options bar that the Ruler tool (nested in the Toolbox with the Eyedropper) was Shift+dragged over 138 pixels. We can, therefore, set the scale to 138 pixels = 2.5 inches. Now, using any selection tool or the Ruler tool, we can 24 327258-ch17.qxp 8/20/08 7:05 PM Page 364 isolate any part of the image, click the Record Measurements button in the Measurement Log panel (which you open, like any panel, through the Window menu), and we find out more than we ever wanted to know about that particular selection. In addition to various sizes, the Measurement Log also records information about the color or gray values in the image (see Figure 17-10). You can also add the measurement scale to the image (as an editable layer group) with the Analysis➪Scale Marker command. Figure 17-10: The Measurement Log panel records so much info, it’s shown here in two sections. After you have made and recorded all the various measurements you need, you can select all the lines in the Measurement Log (or only a few) and click the third button in the upper-right corner of the panel to export the data for use in a spreadsheet program. Photoshop CS4 Extended also offers measurement in perspective through Vanishing Point. Suppose, for example, that for some reason or other you need to calculate how much wallpaper to order for the room shown in Figure 17-11. You know the height of the window (70 inches) and, using that as your known measurement, you can have Photoshop calculate the height and length of each wall. 365 Chapter 17: Introducing Photoshop CS4 Extended 24 327258-ch17.qxp 8/20/08 7:05 PM Page 365 366 Part IV: Power Photoshop Figure 17-11: Measurements can also be made in perspective with Vanishing Point. Counting crows or maybe avian flu Nested with the Ruler tool and the Eyedroppers in the Toolbox is the Count tool. Zoom in and start clicking on whatever it is that you need to count, whether it’s birds in the sky or viruses on a slide. Each item you click is labeled with a number. If you want to record the count (shown in the Options bar and on-screen as the most recent number), click the Record Measurements button in the Measurement Log (shown in Figure 17-12). New in Photoshop CS4 are Count Groups. You can now record and work with multiple counts. To the right of the Count Groups menu in the Options bar (see Figure 17-12) are buttons to show/hide the currently-selected count group, to start a new count group, and to delete the current count group. Click the color swatch in the Options bar to select a new color for the count group, and you can customize both the size of the circle that marks the count and the marker number — individually for each count group. (Don’t you love the way that Warning symbol in the margin catches your eye?) Adjust the marker and label sizes before you start clicking around in your image with the Count tool — changing the size after placing your count mark- ers can shift them in the image window, destroying your meticulous placement. 24 327258-ch17.qxp 8/20/08 7:05 PM Page 366 Figure 17-12: Click on each item and Photoshop keeps a running tally for you. Ignoring MATLAB, DICOM, and Other Initials Photoshop CS4 Extended offers all of these interesting features for scientists, researchers, and technicians, so it only makes sense that it should work with some of the file formats they actually use and integrate with their software. When you come across the term MATLAB in Photoshop CS4 Extended, recog- nize it as a software environment (sort of like a programming language) that speeds calculations and helps coordinate work in various technical pro- grams. Unless you actually work with MATLAB, say in a research lab, there’s nothing else you really need to know. (If you’re intrigued by the idea, visit www.mathworks.com.) Another set of initials in Photoshop CS4 Extended might be of interest: DICOM (Digital Imaging and COmmunication in Medicine). If your doctor’s office, hos- pital, or lab has sent you home with a CD that contains the results of your CAT scan, MRI, ultrasound, or X-rays, you can open the files and take a look right in Photoshop. Copy the files to your hard drive. (Don’t open files into Photoshop directly from CD or DVD.) Choose File➪Open, and in the Open dialog box, select the frames in which you’re interested, and click Open. In the dialog box that opens (shown in Figure 17-13), select the frames, elect to open as layers in an image or in a grid pattern (N-Up), and open. (You can also use Photoshop’s File➪Place command to add a DICOM image to an existing image.) 367 Chapter 17: Introducing Photoshop CS4 Extended 24 327258-ch17.qxp 8/20/08 7:05 PM Page 367 368 Part IV: Power Photoshop Figure 17-13: Review medical imagery right in Photoshop CS4 Extended. 24 327258-ch17.qxp 8/20/08 7:05 PM Page 368 Part V The Part of Tens 25 327258-pp05.qxp 8/20/08 7:06 PM Page 369 In this part . . . D on’t get nervous — this is The Part of Tens and not The Part of Tense! In Chapter 18, I present you with ten of my favorite Photoshop tricks and techniques. Chapter 19 contains a list of a mere ten of the hundreds of reasons why working with a Wacom Cintiq display or Intuos drawing tablet can make your work in Photoshop more efficient — and even help you avoid at least one common computer-related disability. Chapter 20 provides you with ten reasons to shoot digitally. If you already own and use a digital camera, read it anyway for some tips. And then loan it to an analog colleague. 25 327258-pp05.qxp 8/20/08 7:06 PM Page 370 18 Pete’s Top Ten Favorite Photoshop Tips and Tricks In This Chapter ᮣ Playing with artistic and creative tricks ᮣ Exploring a few useful tips I have literally thousands of Photoshop tips and tricks to share with you, but space here allows for only ten. Actually, just about anything you do that doesn’t use Photoshop’s default values or presets could be considered a tip or a trick. However, you’re likely interested in creative and productive shortcuts rather than something like this: Save copies of your custom brushes, styles, and other such bits and pieces somewhere other than the Photoshop folder so you don’t lose them should you ever need to reinstall the program. (Oops! I snuck in an extra tip, didn’t I?) In this chapter, I present ten of my favorite creative and useful techniques. Some of these tricks I developed while helping solve problems in my role as Help Desk Director for the National Association of Photoshop Professionals (NAPP), and others are tried-and-true helpers that have been around for years. Adding Artistic and Creative Effects Surely you’d prefer to read Fill a layer with brown, use the Add Noise filter (Gaussian Distribution, Monochrome), and then apply a Motion Blur filter to create a wood grain effect rather than If you need to apply a grayed-out filter to a CMYK image, apply it to one channel, and then the other three individually using Ô+F/Ctrl+F. (Now, don’t consider those to be tips or tricks — remember that the chapter title says “Ten”!) Here are some of my favorite and most useful creative tips. 26 327258-ch18.qxp 8/20/08 7:07 PM Page 371 372 Part V: The Part of Tens Smoothing skin perfectly When you see glamour shots — you know, photos of The Beautiful People who look so absolutely perfect — one of the things you’re not seeing is the texture of the skin. No wrinkles. No creases. No pores? Indeed, the skin appears to be perfectly smooth (see Figure 18-1). © 2003PhotoSpin, PhotoSpin image #1150039 Figure 18-1: Use the Healing Brush and a plain-color source area to smooth skin. Here’s how you can achieve that effect without blurring: 1. Open a copy of your image. Whenever you use a technique that makes permanent changes to the pixels in your image, you should work on a copy. That preserves the orig- inal image, which not only protects you from any errors that you (or Photoshop) might make but also keeps that original for different tech- niques and tricks in the future. (Does that count as a tip?) 2. Add a new layer by clicking the New Layer button in the Layers panel. 3. Make a selection. The selection should be away from the face area, and sized at least one- half the width and height of the face. 4. Fill the selection with color; then deselect. Press Option+Delete (Mac)/Alt+Backspace (Windows) to fill it with the foreground color (it doesn’t matter what color). 26 327258-ch18.qxp 8/20/08 7:07 PM Page 372 [...]... clipped, 130 CMYK mode, 62, 108 109 Color Balance adjustment, 119 color cast, 92, 113, 155 color channels, 211–212 color data, 113 color depth, 108 , 111–113 color management solutions, print options, 80–81 color models, 108 , 111 color modes, 108 color profiles, 108 29 327258-bindex.qxp 8/20/08 7:09 PM Page 391 Index Color Range adjustment, 128 color shift, 92 color table, 109 – 110 Curves adjustment, 117... command, 126 DigitalColor Meter program, 81 duotone mode, 110 Equalize adjustment, 129 Exposure adjustment, 118 fades, 127 flesh tone formulas, 131–132 gamut, 108 Gradient Map feature, 124 grayscale mode, 109 histograms, 114 Hue/Saturation adjustment, 118 ICC profiles, 62 indexed mode, 109 – 110 intensity, 127 Invert adjustment, 122 LAB mode, 110 layer styles, 254 Levels adjustment, 116 luminance, 127... curved path segments, 235–236 Curves adjustment, 97 100 , 117 custom fonts, 245–246 custom layer styles, 251–255 Custom Shape tool, 227–228 custom shapes, 229–230 custom workspaces See workspaces 391 29 327258-bindex.qxp 392 8/20/08 7:09 PM Page 392 Photoshop CS4 For Dummies •D• darkening images, 105 dashed lines, 379 Datacolor Web site, 80 DCS file format, 40 de-glaring effects, 189 degradation, 41 deleting... Favorites tab (Adobe Bridge program), 74 feathering, 160–162, 169, 209– 210 file formats for commercial printing, 40 DCS, 40 for digital images, 37–39 DNG, 136 EPS, 40 GIF, 39 JPG/JPEG, 38–39, 41 PDF, 38, 83 PNG, 39 for PowerPoint, 40–42 PSB, 38 PSD, 37, 40 Raw, 133–134 saving images in other, 37 TIFF, 38, 40 for Web graphics, 39 for Word, 40–42 29 327258-bindex.qxp 8/20/08 7:09 PM Page 393 Index File... Mask, 318–319 flesh tone formulas, 131–132 flipped text, 294–295 floating panels, 45 folder organization, 71–72 fonts custom, 245–246 font-management utilities, 22 glyphs, 284 OpenType, 284 previews, 15 selection, 296 size of, 278 styles, 278 Suitcase Fusion font book, 22 symbol, 229 foreshortening, 197 formats See file formats Forward Warp tool, 329 Freeform Pen tool, 236–237 freeform tools, 48 Freeze Mask... correction, 104 gamut, 108 gamut preferences, 59 Gaussian Blur filter, 322 General panel preferences, 55 GIF file format, 39 glass text effect, 377 glasses, de-glaring, 189 Global Light layer style option, 252 glyphs, 284 GPU setting preferences, 58 Gradient Map feature, 124 Gradient Overlay layer effect, 262 gradients, 309– 310 Graduate Filter tool, 141 graphics, file formats for, 39 grayscale color mode, 109 ... effects, 188 wrinkle reduction effects, 187 Performance panel preferences, 57–58 perspective, 197, 210 29 327258-bindex.qxp 8/20/08 7:09 PM Page 397 Index Photo Filter adjustment, 121 Photomerge tool, 217–219 photos See images Photoshop basic description of, 9–12 installation, 20–22 starting, 16 Photoshop CS4 Bible, Professional Edition, 357 Photoshop CS4 Extended 3D artwork, 361–362 32-bit images,... Quick Mask mode, 178 Quick Selection tool, 167–168 397 29 327258-bindex.qxp 398 8/20/08 7:09 PM Page 398 Photoshop CS4 For Dummies •R• Radial Blur filter, 322 Radius sliders, Shadow/Highlight adjustment, 103 rain and snow effects, 376 raster images, 12, 109 , 224 ratings, assigning to images, 73 Raw file format Camera Raw update, 137 metadata, 135 sidecar files, 135 unprocessed image data, 133–134 RBG working... 393 29 327258-bindex.qxp 394 8/20/08 7:09 PM Page 394 Photoshop CS4 For Dummies Hue/Saturation adjustment, 118 hyphenated text, 284, 291 •I• ICC profiles, 62 image files closing, 17 opening, 17 renaming, 75 saving, 17 saving as PSD file format, 17 working on copies of, 17 Image menu commands Canvas Size, 35 Duplicate, 193, 211 Image Size, 27 Transform Canvas, 198 Image Processor prerecorded scripts, 344–346... 67–68 for personal shooting, 387–388 reasons to use, 385–388 shooting for work, 386–387 travel convenience, 387 digital images binary code and, 24 defined, 24 file formats for, 37–39 Image Size, 28–30 Digital Imaging and Communication in Medicine (DICOM) feature, 367 digital negative, 100 DigitalColor Meter program, 81 Direct Selection tool, 179, 241 direction lines, 233 distortion, 31 DNG file format, . panel to export the data for use in a spreadsheet program. Photoshop CS4 Extended also offers measurement in perspective through Vanishing Point. Suppose, for example, that for some reason or other. Click on each item and Photoshop keeps a running tally for you. Ignoring MATLAB, DICOM, and Other Initials Photoshop CS4 Extended offers all of these interesting features for scientists, researchers,. animation. 363 Chapter 17: Introducing Photoshop CS4 Extended 24 327258-ch17.qxp 8/20/08 7:05 PM Page 363 364 Part IV: Power Photoshop Measuring, Counting, and Analyzing Pixels Designed for researchers and scientists,