This article describes the performance of the large aperture using Photoshop fuzzy background shallow depth of field effects, although the scope of choice is not particularly accurate, but the method is simple and the results easier.
Open image in Photoshop, copy the background layer:
The implementation of "filter" => "Fuzzy" => "Gaussian blur"
Add a Mask:
The use of elliptical constituency, select the part of Portrait of a constituency:
The implementation of the "Choice" => "emergence":
Eclosion set a radius of 100, you can try to change numerical ah!
Set Foreground to black # 000000
The use of paint bucket tool to fill an oval region:
Finally, the abolition of the constituency, the combined layers, the final results as follows:
Related knowledge of photo editing software: