1. A method implemented by one or more computing devices, the method comprising: receiving a request for video communication; determining whether to perform a blurring operation for a video image of a first user; and in response to determining that the blurring operation is to be performed for the video image of the first user, determining a region of operation corresponding to operation information in response to detecting an operation on the video image of the first user, obtaining the video image of the first user, and performing the blurring operation only on a portion of the video image of the first user that is outside the region of operation, performing the blurring operation enabling a video dialog window of a second user to display a blurred video image of the first user.