Embedded alpha channel
Ordinary video clips have three channels of statistics for red, green, and blue. An alpha channel is an auxiliary channel that explain areas of lucidity in the image. If you source from abroad a QuickTime movie or a still image from another application, or a file that’s been generate by a 3D animation program, it may have an alpha channel in inclusion to its color channels. An alpha channel is a a range of grey shades from white to black, as used in a monochrome display in channel where quantity of white and black regulate changing degrees of lucidity applied to the color channels through outing compositing.
This is the example of alpha channel image.
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