To get to the blur options select the background then go to Filter then Blend and choose one of the options from the drop-down menu. You can try the Gaussian blur to use on the background ...

Under the right circumstances, Gaussian blurring can make an image seem more clearly defined. [DZL] demonstrates exactly this with a lightweight and compact Gaussian interpolation routine to make ...

Contrast with white noise and pink noise. See Gaussian distribution and Gaussian blur. (2) A random distribution of artifacts in analog video images that makes everything look soft and slightly ...