noun
blurring; blur; gradient; shading
Used in image processing, photography, and art for softening edges or creating gradual transitions.
写真の背景にぼかしを入れる。
I add a blur to the background of the photo.
この画像編集ソフトでは、ぼかし
In this image editing software, you can adjust the strength of the blur.
noun
bokashi composting; fermented composting
A gardening term for a method of fermenting kitchen waste using microorganisms; often used in organic gardening.
生ごみをぼかしで堆肥化する方法が人気です。
The method of composting kitchen waste using bokashi is popular.
ぼかす is the transitive verb meaning 'to blur' or 'to shade off'; ぼかし is the noun form referring to the result or technique.
Derived from the verb ぼかす (to blur, to shade off). The gardening sense is a specialized application of the same word.