TAILIEUCHUNG - Tài liệu Photoshop cs5 by Dayley part 42

Tinh chỉnh các cạnh Sau khi bạn đã thực hiện lựa chọn của bạn là hoàn hảo như bạn có thể, đó là thời gian để đặt lại lần cuối bằng cách tinh chỉnh các cạnh. Việc sàng lọc Edge hộp thoại, thể hiện trong hình 9,30, có thể được truy cập bằng cách nhấp sàng lọc Edge trong thanh Options. | Chapter 9 Creating Selections 2. Set the brush size in the Options bar. You want your brush slightly smaller than the area you are painting. 3. Set Opacity to 100 in the Options bar. 4. Brush the Quick Mask into areas that you don t want selected by dragging it over those areas as shown in Figure . FIGURE By using the Brush tool to add to the Quick Mask I am subtracting from the selected area. Note Of course these two would be reversed if you were to invert your mask you would erase areas that you didn t want selected and brush in areas that you did want selected. Refining the edges After you ve made your selection as perfect as you can it s time to put the finishing touches on it by refining the edges. The Refine Edge dialog box shown in Figure can be accessed by clicking Refine Edge in the Options bar. The Refine Edge dialog box has changed significantly in Photoshop CS5 adding some useful capabilities including an edge detection feature that ensures your selection is spot-on and output settings that allow you to create layers masks and or a new document with your selection. The options found in the Refine Edge dialog box are detailed in the following sections. 285 Part III Selections Layers and Channels FIGURE The Refine Edge dialog box all new for Photoshop CS5 View Mode View Mode determines how your selection is previewed while working in the Refine Edge dialog box and includes the following options Hand tool The Hand tool works the same here as it does in the Toolbox you can use it to move your document around in the document window so you can see the desired area. Zoom tool This also works just like the Zoom tool in the Toolbox you can use it to zoom into areas that you are previewing or adjusting. Getting a closer look at the edges as you make changes to them is never a bad idea. View The View menu is shown in Figure and gives you several different ways to view your selection. You can keep the marching ants use a color overlay or use

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