tailieunhanh - Adobe Photoshop CS3 A-Z: Tools and features illustrated ready reference- P6

Tham khảo tài liệu 'adobe photoshop cs3 a-z: tools and features illustrated ready reference- p6', công nghệ thông tin, đồ họa - thiết kế - flash phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | SELECTIONS Selections Menu - Shortcut - See also Elliptical Marquee Version Rectangular Marquee CS CS2 Magnetic Lasso tool Lasso tools CS3 Polygonal Lasso tool Magic Wand tool Quick Selection tool When first starting most Photoshop users apply editing and enhancement changes to the whole photograph but before too long it becomes obvious that sometimes it would be a benefit to restrict the alterations to a specific part of a picture. For this reason image-editing packages contain features that allow the user to Isolate small sections of a photo which can then be altered independently of the rest of the picture. The process of isolating a picture part is called Making a selection. When a selection is created in Photoshop the edges of the isolated area are indicated by a flashing dotted line which is sometimes referred to as the marching ants. A selection restricts any changes made to the image to just the area isolated by the marching ants. To remove the selection and resume full image-editing mode the area has to be Deselected Select Deselect . 1 Non-selected area. 2 Area selected with the Rectangular Marquee tool. 3 Marching ants signifying the boundaries of an active selection. The selection tools in Photoshop can be divided into two main groups Drawing selection tools or those that are based on selecting pixels by drawing a line around the part of the image to be isolated. These include the Rectangular and Elliptical Marquee and Lasso tools. Color selection tools or those features that distinguish between image parts based on the color or tone of the pixels. An example of this type of tool is the Magic Wand. The exception to these groupings is the new Quick Selection tool which bases the selections It creates on both drawing action painting over the areas to be selected and color texture and tone matching Photoshop tries to anticpate other areas to include in the selection based on what you are painting over . The marching ants of a feathered selection .

TỪ KHÓA LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.