If the edge of the cutout is clear, the value can be set to a smaller value. If the edge is not clear, it can be set to a larger value. (4) After the noose is closed, the cutout is completed. 1.3 Use the "Pen Tool" to cut out the image Principle: Rely on points and lines (segments) to form paths. Scope of application: The image boundary is complex and discontinuous, and the processing accuracy is high. Method flaws: slow, not useful for messy hair. Steps: (1) Select the "Pen Tool", and select the "Path" option in the pen tool property bar. (2) Click on the place where you start to cut out the image (select the bump or vertex) to add the first anchor point.

(3) Click to generate the second point, hold down Image Manipulation Service the left mouse button and don't let go, drag along the edge of the image, press the Alt key to click the point to extinguish a handle (without maintaining the curvature of the previous anchor point) , click the Alt key to cut off the path adjustment lever). (4) Continue to click the next point, if it is a curved edge, repeat step 3; if it is a straight edge, there is no need to drag. Repeat the operation several times, and when the circle is quickly drawn, click the first point to close the path. (5) For the created path, press the key combination "Ctrl+Enter" to convert it into a selection, and then press "Ctrl+J" to copy the selection to a new layer, and the matting is completed.

Note: Press and hold the Ctrl key when cutting out, and the mouse will turn into a white hollow arrow. At this time, the position of the node can be moved, and the direction and length of the direction line handle can be readjusted. If you make a mistake and want to go back to the previous point and continue to draw, first press the Del key to delete the wrong anchor point, and then use the pen tool to click on the previous point to continue drawing. 2 Indirect selection 2.1 Use the "Layer Mask" to cut out the image Principle.