Imgix APIsVideo APIMask ImageMask Background Color

Mask Background Color

mask-bg

Sets what fills the area outside the mask shape. Valid values are any Imgix color.

Without mask-bg, the area outside the mask is white on an opaque still and transparent on a still with alpha. On an opaque still the value’s alpha channel is dropped.

Alias: maskbg.

mask applies to still frames only. Video, animations and spritesheets draw no mask.

Examples

Each example renders a still of the same video.

Without mask-bg, the area outside the mask is white on an opaque still.
https://assets.imgix.net/Croatia.mp4?w=600&fm=jpg&mask=ellipse

Default

Default crop

Default

Default