Photoshop cs5 cho nhiếp ảnh gia part 20 docx

... shown in Figure 1. 2). Although you can create motion blurs in Photoshop, planning your image ahead of time (for example, using a slow shutter speed combined 607343c 01. indd 2 4 /11 /10 11 :02:22 PM 6 c ... in the “Exposure” section of this chapter) to optimize 607343c 01. indd 6 4 /11 /10 11 :02:26 PM 5 ■ CHOOSING RAW VERSUS JPEG Figure 1. 3 A section of an image originally captured...

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... n An o n 607343c01.indd 7 4/11/10 11: 02: 27 PM 6 c h a p t e r 1: THINKING DIGITALLY ■ 25 6 possible tonal values, each pixel has 16.7 million (25 6 × 25 6 × 25 6) possible color values, as shown ... Component Possible Colors per Pixel 8 bits JPEG 25 6 16.7 million 12 bits RAW 4,096 68.7 billion 16 bits PSD, TIFF 65,536 28 1 trillion Now, 16 million color choices may seem like more t...

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... to your exposure. 60 734 3c01.indd 14 4/11/10 11:02 :32 PM 13 ■ UNDERSTANDING HISTOGRAMS Figure 1.8 If your image contains very saturated colors, the RGB histogram may indicate potential blown-out ... you may be able to capture those areas of the flower or bird with more detail. 60 734 3c01.indd 13 4/11/10 11:02 :32 PM 16 c h a p t e r 1: THINKING DIGITALLY ■ Compare the image and histogra...

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... the right is just before the end of the histogram.) Ph ot o b y EllEn An o n 607 343 c01.indd 18 4/ 11/10 11:02 :41 PM 14 c h a p t e r 1: THINKING DIGITALLY ■ Figure 1.9 A histogram for this shade ... see a histogram that looks like Figure 1.11, you need to add light to your exposure. 607 343 c01.indd 14 4/11/10 11:02:32 PM 17 ■ UNDERSTANDING HISTOGRAMS Figure 1.13 shows an overexposed...

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... (overexposed), it records a maximum value of 255 and a corresponding voltage level is produced. Light levels in between are recorded as some value between 0 and 255 . Although silicon doesn’t suffer directly ... histogram. Note: Some photographers new to digital and Photoshop think they don’t have to worry about exposure anymore because they can “fix it” later in Photoshop. The harsh re...

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... important to remember that Photoshop enables you to combine images in a seemingly infinite variety of ways. You have to adjust your thinking to include seeing the potential for an image. Expanding ... we’ll discuss it more in Chapter 8. In addition, there are several other ways to combine 16- bit exposures 60 7343c01.indd 31 4/11/10 11:02:49 PM 29 ■ COLOR MANAGEMENT Color-Management Esse...

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... how to remove objects in Photoshop in Chapter 5.) Aperture and Lightroom A few years ago the software choices for digital photography were fairly limited; Photoshop and Photoshop Elements dominated ... themselves to photographing parts of a picture that you will later combine in Photoshop. You can create libraries of these image elements to use at some later time. 6 073 43c01.indd 32...

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... unchecked and instead double-click an image or right-click on an image and choose Open with > Photoshop Elements 8, you will see the limited version of ACR. In that case there’s an Open button ... unchecked and instead double-click an image or right-click on an image and choose Open with > Photoshop Elements 8, you will see the limited version of ACR. In that case there’s a...

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... help Bridge run faster. As shown in Figure 2 .9, check Adobe Bridge, Adobe Out- put Module, Adobe Photoshop CS5, and Auto Collection CS5. Figure 2 .9 Select only those scripts that you need in ... check box is cleared, raw files open into ACR hosted by Photoshop. When you check the box, the ACR dialog box opens without launching Photoshop. This may seem like a subtle distinction, bu...

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... template in the future, choose Import to open it, make your changes, and re-export it. Note that the fields Elements allows you to set are limited compared to Photoshop CS5. Renaming After Import Although ... in which the files are sorted. The last icon enables you to place a file in Photoshop (which we don’t normally do as part of our workflow, but graphic artists may use this feat...

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... Vignetting: The Eects Tab CS5 added an Effects tab to enable you to add grain to an image and/or apply a Post Crop Vignette as shown in Figure 3.21. Figure 3.21 In CS5 it’s possible to add ... snapshot, open the Snapshot tab and click the snap- shot or choose Apply Snapshot from the fly-out menu at the top right of the tab and choose the desired snapshot. To delete a snapshot, select...

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... image, you’ll have to decide whether to eliminate it. Not all color casts are bad! Remember that part of the reason many nature photographers prefer early-morning and late-afternoon light is for ... Table 7.1 Identifying a Color Cast via the Info Panel (Continued) 607343c07.indd 278 4/13/10 2:41 :45 PM 275 ■ COLOR ADJUSTMENTS 7 Ph oto by Josh An on Color Adjustments Color often create...

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... > Remove Color Cast. Then click on part of the image that should be black, gray, or white, and Elements will remove the color cast. This is similar to choosing Levels and using the gray eyedropper. Using ... > Remove Color Cast. Then click on part of the image that should be black, gray, or white, and Elements will remove the color cast. This is similar to choosing Levels and...

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... 359 ■ FILTERS Blurs Photoshop CS5 has an impressively long list of blurs, but we’ll cover only the ones that are particularly applicable to nature photographs. We ... Auto Scale Image and visually inspect the results, particularly near the edges. Choosing Edge Extension from the Edge drop-down menu will cause Photoshop to automatically fill in the transpar- ent ... and Zoom tool icons...

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... Windows platforms and some of the choices may be redundant to those in the Photoshop Print dialog. We recommend making certain the settings reflect the correct choices in both places. In Windows, ... dialog box for the particular printer you are using appears (see the example in Figure 10.17). The settings you use in the printer Preferences dialog box depend on your particular printer mo...

Ngày tải lên: 02/07/2014, 07:20