The lasso tool in photoshop includes three tools, namely lasso tool, polygonal lasso tool and magnetic lasso tool. Lasso tool is the most basic selection tool and plays an important role in image processing.

1. First, open the photoshop design software. The version used in this demonstration is photoshop CC20 17, and other versions are also acceptable.

2. Load a picture for demonstration to photoshop.

3. In order to prevent the original image from being destroyed in subsequent operations, we can copy the layer first, and we can use the shortcut key CTRL+J. ..

4. Click the magnetic lasso tool in the toolbar on the left.

5. You can click the magnifying tool on the left to enlarge the picture first, and then use the magnetic lasso tool to select the elements to be buckled. When the magnetic lasso is used, it will absorb the pixel edges with large differences. In the position where the boundary is blurred, we can correct the selected area of the magnetic lasso by appropriate mouse click.

6. The magnetic lasso will eventually form a closed loop. After the closed loop is formed, press and hold the CTRL+J key on the keyboard to copy the selected area. As you can see, we have used magnetic lasso to extract parrot patterns.