Photoshop cs5 by steve Johnson part 74

Cắt hình ảnh của Easy WayPhotoshop cho phép bạn cắt một tài liệu thành nhiều phần nhỏ hơn. Bạn có thể muốn cắt một hình ảnh để tạo ra các liên kết tương tác, tuy nhiên, lý do tốt nhất là tốc độ. Bạn có được tốc độ bằng cách nén lát cá nhân để giảm kích thước hình ảnh. Có hai loại lát: người dùng định nghĩa và layer-based.
Nội dung trích xuất từ tài liệu:
Photoshop cs5 by steve Johnson part 74Slicing Images the Photoshop allows you to slice a document into smaller pieces. You might want to slice an image to create interactive links; however, theEasy Way best reason is speed. You gain speed by compressing individual slices to reduce the image size. There are two types of slices: user-defined and layer-based. You can draw directly on an image to create a user slice using the Slice tool, or create a layer and then change it into a layer-based slice. When you create a slice, Photoshop also creates auto slices, which fill the space in the image that is not defined by a user-defined slice. User-defined and layer-based slices are identified by a solid line with blue symbols, while auto slices are identified by a dotted line with gray symbols. The slices also are numbered from left to right and top to bottom. A layer-based slice uses all the data in the layer to make up the slice. If you want to make changes to the slice, you need to edit the layer, which makes it a little more difficult to use than a user slice. When you edit or move the layer contents, the slice is automatically changed too.Create a User Slice 1 Open a document. 2 Select the Slice tool on the 2 toolbox. IMPORTANT To make slicing a little easier, drag a few guides from the Ruler bar to help guide your slicing tool. 3 Click the Style Setting list arrow on the Options bar, and then select the style you want: ◆ Normal. Specifies the slice size as you drag. 4 User slice ◆ Fixed Aspect Ratio. Specifies a ratio for the slice height and width. ◆ Fixed Size. Specifies the slice height and width in pixels. 4 Drag and release the slice tool in the document to create a rectangular or square slice. ◆ To constrain the slice to a square, hold down Shift as you drag. To create a circle, hold down Alt (Win) or Option (Mac). 5 5 Continue to drag and release until you have the image correctly sliced.462 Chapter 19Create a Layer-based Slice 1 Open a document. 2 Select the layer you want in the Layers panel. 2 3 Click the Layer menu, and then click New Layer Based Slice. Did You Know? Layer-based slice You can convert an auto or layer- based slice to a user slice. Select the slice using the Slice Select tool, and then click Promote on the Options bar. You can create slices from guides. Add guides to the image, select the Slice tool on the toolbox, and then click Slices From Guides on the Options bar. To create a new guide, click the View menu, click New Guide, click the Horizontal or Vertical option, specify the position in inches, and then click OK. You can lock guides. To keep a guide from being moved, click the View menu, and then click Lock Guides. You can remove guides. To remove guides, click the View menu, and then click Clear Guides. You can show and hide guides. Click the View menu, point to Show, and For Your Information then click Guides. The command toggles the guides’ visibility on and off. What’s a Subslice? The subslice is a type of auto slice that is automatically created when you create overlapping slices. They are created as a stack, one on top of the other, which you can rearrange. The subslice shows you how the image is divided when you save the optimized file. Subslices appear with a number and a slice symbol. When you make changes to a slice related to a subslice, the subslice automatically gets ...