Color depth triangle does enclose a much larger gamut, so whether more than three primaries results in a difference to the human eye is not yet proven, since humans are primarily trichromats, though tetrachromats exist. Color depth Color depth or colour depth (see spelling differences), also known as bit depth, is either the number of bits used to indicate the color of a single pixel, in a bitmapped image or video framebuffer, or the number of bits used for each color component of a single pixel. For consumer video standards, such as High Efficiency Video Coding (H.265), the bit depth specifies the
Color difference Commonly used values are 2:1 for acceptability and 1:1 for the threshold of imperceptibility. The distance of a color formula_27 to a reference formula_28 is: CMC l:c is designed to be used with D65 and the CIE Supplementary Observer. The formula is not a metric but rather a quasimetric because it violates symmetry, parameter T is based on the hue of the formula_32 alone. This reference color means that the color difference from the first color to the second color is different than the color distance from the second color is to the first. Tolerancing concerns the question "What is