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Photoshop cs5 by steve Johnson part 14

Sử dụng công cụ Polygonal Lasso Các Polygonal Lasso tạo ra đường thẳng lựa chọn, hoàn hảo cho việc tạo ra một lựa chọn xung quanh một hoặc roofline chắn cửa sổ của một căn nhà. Chọn công cụ Polygonal Lasso trong hộp công cụ từ các tùy chọn Lasso có sẵn, và nhấn chuột để tạo một điểm, sau đó, di chuyển và nhấn chuột để tạo ra các đường thẳng giữa hai điểm. | Using the Polygonal Lasso Tool The Polygonal Lasso creates straight-line selections perfect for creating a selection around a windowpane or the roofline of a house. Select the Polygonal Lasso tool in the toolbox from the available Lasso options and click to create a point then move and click to create straight lines between the two points. Keep clicking and moving your mouse until the desired selection shape appears. Double-clicking the mouse instructs the Polygonal Lasso tool to close the selection shape. Use the Polygonal Lasso Tool Select the Polygonal Lasso tool on the toolbox. Click the Tool Preset list arrow and then select from the available tool presets. Use the selection options on the Options bar to create a new selection or add to subtract from or intersect with an existing selection. Enter a numerical value 0 to 250 in the Feather box to create a feathered selection edge or click the Refine Edge box to visually fine-tune your feather size. Select the Anti-alias check box to create a softer selection useful with intensely rounded or curved selections . Click to create anchor points and then double-click or click the starting point to complete the selection. Did You Know You can temporarily use the Polygonal Lasso tool as a freeform Lasso tool. Hold down the Alt Win or Option Mac key and then drag to draw. Release the mouse to return to the Polygonal Lasso tools. 84 Chapter 4 Using the Quick Selection Tool The Quick Selection tool makes it easier to select the areas of an image you want. Simply paint a loose selection using an adjustable round brush tip to select the area you want. As you paint with the Quick Selection tool the selection expands outward and automatically finds and follows defined edges in the image. You can also enable the AutoEnhance option to reduce roughness and pixelation in the selection edge. Use the Quick Selection Tool Select the Quick Selection tool on the toolbox. Click the Tool Preset list arrow and then select from the .