Normal Blend Mode
This is the standard blend mode which uses the top layer alone, without mixing its colors with the layer beneath it.
Where a is the value of a color channel in the underlying layer, and b is that of the corresponding channel of the upper layer. The result is most typically merged into the bottom layer using "simple" (b over a) alpha compositing, but other Porter-Duff operations are possible. The compositing step results in the top layer's shape, as defined by its alpha channel, appearing over the bottom layer.
Read more about this topic: Blend Modes
Famous quotes containing the words normal, blend and/or mode:
“Normality highly values its normal man. It educates children to lose themselves and to become absurd, and thus to be normal. Normal men have killed perhaps 100,000,000 of their fellow normal men in the last fifty years.”
—R.D. (Ronald David)
“Living by basic good-mothering guidelines enables a mom to blend the responsibilities of parenthood with its joys; to know when to stand her ground and when to be flexible; and to absorb the lessons of the parenting gurus while also trusting her inner voice when it reasons that another cookie isn’t worth fighting over, or that her child won’t suffer irreparable trauma if, once in a while, Mom puts her own needs first.”
—Sue Woodman (20th century)
“Sight is the least sensual of all the senses. And we strain ourselves to see, see, see—everything, everything through the eye, in one mode of objective curiosity.”
—D.H. (David Herbert)