? 1 open the photoshop software,

? 2
Click on the file,

? 3
Click to open,

? 4
Choose and confirm the material,

? 5
Double-click on the background,

? 6
Sure, the two is the layer to unlock, otherwise behind the operation,

? 7
Modify the image display proportion, here is large,

? 8
Can move the slider move next to the pictures,

? 9
Select the pen tool,

? 10
Use pen tool to draw the outline of the edge a little bit, curve part to a little point, linear part just at the beginning end of the line on each point,

? 11.
Starting point and end point must point together, only the last point here,

? 12
Point together to form a closed graph,

? 13
Right-click and choose make selection,

? 14
Feather radius set to 1, click confirm,

? 15
After make selection is dotted lines form closed graph,

? 16
Shrink ratio can see the full graphics,

? 17
Click on the select options,

? 18
Select reverse,

? 19
Find the Delete key on the keyboard DEL or Delete, click the bottle outside of the content will be deleted, or you can click edit choose clear,

? 20
Complete cleared,

This is I learned Ps quote step, so I want to share with you, hope you can help to you,
New hands, so that's my share, please advice, if there is a better way or do not know the place to welcome in the comments section to teach and questions!