Depth-of-field-based background blur method and device and electronic device

Abstract

The invention discloses a background virtualization method based on depth of field, which is used for processing scene data collected by an electronic device, and the scene data includes a scene main image. The background blurring method includes: processing the scene data to obtain image depth information of the scene main image; obtaining the frontmost point of the scene main image according to the image depth information; determining the area except the area adjacent to the frontmost point and continuously changing in depth as the background part; Obtain the background depth information of the background part; divide the background part into at least one blurred area according to the background depth information, and the span of the depth range corresponding to each blurred area is positively correlated with the distance between the depth range and the frontmost point of the main image of the scene; determine each The degree of blurring of each blurred area, the degree of blurring of each blurred area is positively correlated with the corresponding depth; the background part is blurred. The invention also discloses a background virtualization device and an electronic device based on the depth of field. The invention can make the blur effect of the image more natural and closer to the optical virtual focus effect.

Description

technical field [0001] The present invention relates to image processing technology, in particular to a depth-of-field-based blurring method and device, and an electronic device. Background technique [0002] Existing background blurring techniques are not ideal. Contents of the invention [0003] Embodiments of the present invention provide a method for blurring a background based on a depth of field, a device for blurring a background based on a depth of field, and an electronic device. [0004] The depth-of-field-based background blurring method according to the embodiment of the present invention is used for processing scene data collected by an electronic device. The scene data includes a scene main image, and the background blurring method includes the following steps: [0005] processing the scene data to obtain image depth information of the scene main image; [0006] Obtaining the frontmost point of the scene main image according to the image depth information;...

AI Technical Summary

Problems solved by technology

[0002] Existing background blur technology is not ideal

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