BUILT-IN WOLFRAM LANGUAGE SYMBOL

SetAlphaChannel

SetAlphaChannel[image]
adds a fully opaque alpha channel to image.

SetAlphaChannel[image,a]
sets the opacity of all pixels to a.

SetAlphaChannel[image,aimage]
sets the alpha channel of image to aimage.

Details Details

SetAlphaChannel[image] is equivalent to SetAlphaChannel[image,1].
SetAlphaChannel[image,…] ignores opacity properties of image.
SetAlphaChannel[image,graphics] uses an arbitrary Wolfram Language graphics object as the alpha channel.
SetAlphaChannel works with images of explicit color spaces, that is, any setting of the ColorSpace option other than Automatic.
SetAlphaChannel works with Image3D objects.