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11 Cards in this Set
- Front
- Back
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What is a channel?
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A component of an image where information about color is stored.
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What is an Alpha channel?
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A special 8-bit grayscale channel that stores information about masks/selections.
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What is an 8-bit pixel?
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A pixel that has 8 bits of data assigned to it.
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How does Photoshop store a full-color image?
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In channels of 8-bit pixels. 8 bits of data are assigned to each pixel so there are 256 brightness values from black to white in each color channel.
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Name the channels in an RGB file.
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Red, green, blue.
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Name the channels in a CMYK file.
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Cyan, magenta, yellow, and black. Each color represents a process-color printing ink.
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What is bit depth?
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The number of bits used to store a pixel's color information for display.
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How many colors does an 8-bit image display?
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256
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How many colors does a 1-bit image display?
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One (also called monochrome)
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What is a mask in Photoshop?
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A selection that isolates one area of the image from being changed while you changing another area. Anything outside the mask is protected from changes.
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What is RGB and where does it come from?
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Red, Green, Blue - the three colors of light that create all other colors on a computer screen.
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