- Deep Color
Deep Color is a term used to describe a method of representing graphical image data using an extremely large number of shades, hues and luminosities, capable of displaying billions of possible colors. It is often employed when display mediums have a very wide color
gamut . Deep Color is sometimes referred to as the successor toTrue Color .Color depth and space
Configurations where graphical image data is stored using at least 30 bits of color precision (excluding
alpha channel and/or padding bits) are typically considered to be Deep Color. This compares to True Color which is typically defined as using only 24 bits of color precision. Common bit depths for Deep Color include 30 bits (1.073 billion colors), 36 bits (68.71 billion colors) and 48 bits (281.5 trillion colors).The color data stored for each pixel is an absolute representation of that pixel's color. This contrasts to a color table system where each pixel is flagged with color data that points to an entry in a color table.
The
xvYCC , R-G-B, and Y-Y/B-Y/Rcolor space s can be used with Deep Color systems.Usage
Deep Color is often employed in video displays where very wide color gamuts are offered, such as with high-end displays compatible with the
xvYCC gamut range. Due to the increased range of hue and luminosity of these devices, lower color depths might result in wider gaps between color values. This could result in a condition calledposterization due tocolor banding .The
HDMI Licensing group has adopted Deep Color modes for their HDMI 1.3 cable specification. Compatible displays and video sources would allow for more photo-realistic media.References
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Wikimedia Foundation. 2010.
