tailieunhanh - Tài liệu Photoshop cs5 by Dayley part 32

Phần II: Làm việc với hình ảnh Camera Raw Bạn có thể lựa chọn nhiều hình ảnh cùng một lúc bằng cách sử dụng phím Shift để chọn hình ảnh theo thứ tự hoặc Ctrl / Ô để chọn hình ảnh một lúc. Bạn cũng có thể nhấn Select All để chọn tất cả các hình ảnh trong filmstrip này. | Part II Working with Camera Raw Images You can select more than one image at once by using the Shift key to select images in sequence or the Ctrl S key to select images one at a time. You also can click Select All to select all the images in the filmstrip. To Synchronize which changes are made to all the selected images click Synchronize. This opens the Synchronize dialog box shown in Figure . Use the drop-down menu or individual check marks to select which options change across all the selected photos in Camera Raw. FIGURE Use the Synchronize menu to choose which changes will be universally made. After you are finished making batch changes you can select your photos one at time to preview the changes and tweak them individually but the bulk of the adjustments already are made saving you lots of time in processing your files. Adjusting the White Balance Your camera has a White Balance setting that tells it what lighting is being used when a photo is captured. A fluorescent light leaves a greenish-yellow cast on your photos giving your whites a greenish-yellow tinge for example. Your camera can compensate by adjusting the color information 218 Chapter 8 Processing Photos in the Camera Raw Workspace to filter out the color cast. But just as any automatic process the camera compensation is not ideal for all images. If your photo is a raw image you don t have to worry if the White Balance setting on your camera is correct or if it compensated correctly for a particular lighting situation. You can adjust the white balance after the photo has been shot using Camera Raw. Not that you want to shoot all your images in tungsten mode but you could. Getting the white balance correct is the single most important thing you can do to improve the colors in your photo. Even photos that look good can be improved with a simple white balance adjustment and photos taken in horrible lighting situations make a dramatic improvement. The before photo in Figure shows an image .

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