Selecting a part of the image is required whenever you need to limit the scope of the graphics editor tools. Photoshop offers a wide variety of ways to do this.
Necessary
- - Photoshop program;
- - image.
Instructions
Step 1
Some of the most obvious ways to select a section of a well-defined picture include using tools such as the Rectangular Marquee, Elliptical Marquee, Single Row Marquee, and Single Column Marquee. With the help of the Rectangular Marquee, you can select a rectangular area of any size. To do this, turn on the tool, hold down the left mouse button and drag the selection bounding box. If you need to select a square area, hold down the Shift key while applying the Rectangular Marquee.
Step 2
To select a fragment of an elliptical shape, the Elliptical Marquee tool is suitable. Holding down the Shift key during operation will make it possible to select a round area of the image.
Step 3
The Single Row Marquee and Single Column Marquee tools come in handy when you need to select a vertical or horizontal row one pixel wide.
Step 4
In the process of working with an image in Photoshop, you may need to select an area of arbitrary shape. The tools of the Lasso group are suitable for this purpose. To apply the Lasso Tool, hold down the left mouse button, circle the desired fragment of the image and close the selection by moving the cursor to its beginning.
Step 5
Polygonal Lasso should be used when you need to select a polygon. Turn on the tool and, by clicking with the left mouse button, place the anchor points in the corners of the fragment in turn. To close the selection, click on the first anchor point.
Step 6
The Magnetic Lasso tool is used to quickly select areas with contrasting edges. Before starting work, set a value in the Edge Contrast field. With a small value of this parameter, the tool will react to a slight change in contrast. Click on the edge of the selected object and, releasing the mouse button, circle the fragment. Magnetic Lasso will add anchor points to the edges of the area. If the last anchor point is out of place, delete it with the Backspace key. If necessary, put a point manually by clicking on the contour in the desired place.
Step 7
In Photoshop, you can select an area of an image, based on its color, using the Magic Wand. To use this tool, click on the area of the picture containing the color from which you create a selection. When the Contiguous checkbox is checked, only adjacent pixels will be affected by the Magic Wand. By deselecting this option, you will select all parts of the image that fit the selected range.
Step 8
When processing images, you often have to deal with separate processing of shadows, halftones and bright areas of the image. To select them, you can use the Color Range option from the Select menu. Selecting the Highlights item from the Select list, you will select the bright parts of the picture, the Midtones item will be needed for the middle tones, and the Shadows - for the shadows. Using the Color Range, you can select an area painted in an arbitrary shade. To do this, select the Sampled Colors item and specify a color on the image, on the basis of which the selection will be created.
