Photoshop Jargon: Alpha Channel

An “alpha channel” is a channel that carries pixel transparency data, rather than pixels, and in Photoshop files these are kept as additional channels with masks. The masks are a throwback from the physical masks used in platemaking, which consist of black material that protect parts of a plate from the light.

Read more on Photoshop Jargon: Alpha Channel…

An “alpha channel” is a channel that carries pixel transparency data, rather than pixels, and in Photoshop files these are kept as additional channels with masks. The masks are a throwback from the physical masks used in platemaking, which consist of black material that protect parts of a plate from the light.

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