Photoshop Tutorials - Making Selections of the Arbitrary Shape. Lasso Tools.
Making Selections of the Arbitrary Shape. Lasso Tools.
Objects on photos that you work with in Photoshop usually have a complex shape. Photoshop has a set of tools to work with objects of a complex shape.
Select the Lasso tool. Press the button and start moving it along the outlines of the object that you want to select. When the cursor will return to the starting point, you can release the mouse button. But most likely you will not be satisfied with your selection, because it is hard to do the job precisely with the mouse. The distinctive feature of Lasso tool is that it will enclose the selection automatically when you release the mouse button with the straight line that will connect the starting point and the point where you have released the mouse button.
To receive results that are more precise you can choose Polygonal Lasso tool. Select this tool and click on the right side of the image to place the starting point. The line will stretch with the cursor connecting it with the starting point. Move the cursor along the outline of the object until it will stop matching with the outline shape. At the first /every next curve, you need to click on the image and set the control point then move the mouse cursor along the outline until it stops matching the shape of the outline. Before this happens, you must set the control points every time. Repeat the steps until the object outline is completely selected. When you will return to the starting point a little circle, symbol will appear by the cursor and this means that by clicking once again you will complete the selection.
Magnetic Lasso tool can define the points of the greatest color contrast on the image and place the control points of the selection along the border of the colors. But the tool can not determine whether the contrasting part is the border of the object or background or completely belongs to one of them. Therefore, your task while using the tool is to guide it approximately along the object outlines while the tool will determine the borders exactly. You can reach maximum effectiveness working with Magnetic Lasso tool if you will set it up properly. In the Options palette, you can set the Width (the size of the area that is analyzed by the tool). The smaller the Width, the more precise is the selection, but you will have to be more careful moving along the outlines. The Frequency setting sets how often the control points are set. The higher the frequency the more precise is the object selection, but you will have to work more with this tool. The Edge Contrast determines the minimal contrast value between adjacent pixels, enough to count this as an outline. Therefore, if you need to select a bigger object with easy shapes you can increase the Lasso Width and Edge Contrast and decrease the Frequency value.