Grayscale Image

Updated 22 Sep 2026

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What it is
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  an image represented using shades of gray, commonly with one intensity-related channel
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Example
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  8-bit grayscale commonly uses 256 levels
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Caution
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  grayscale does not imply binary
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  converting RGB to grayscale normally uses a defined weighted transformation, not an arbitrary choice of one channel
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Related
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  Binary Image
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  Image Quantization

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