There is only one file type that uses the .LB extension:
Lens Blur Project File
File created by Lens Blur, an application that enables the user to apply Bokeh effects to images; contains a project, which consists of an image, customized effects, and any project settings.
Bokeh is the aesthetic quality of a photograph that is out-of-focus. It is similar to a "Gaussian" blur that can be applied using image editing applications, such as Adobe Photoshop.
NOTE: NexusHubs Lens Blur has been discontinued.
|NexusHubs Lens Blur|
Updated: September 20, 2019