What term describes a group of color values identified by a vision system as the same color?

The term "color signature" refers to a distinct set of color values that a vision system recognizes as representing the same color. This is important in various applications such as image processing and computer vision, where accurately identifying and grouping colors helps in the analysis and interpretation of visual data. The color signature typically involves the specific RGB values or other color representations that encapsulate the perception of a particular color, allowing the system to categorize and process visual information efficiently.

The other terms mentioned have different meanings. "Color spectrum" relates to the range of colors visible to the human eye and their wavelength distribution, rather than a group of values recognized as a single color. "Hue range" describes a continuum of colors based on their shade and saturation but does not specifically define a grouped set of values recognized by a system. Lastly, "RGB value" refers to the specific representation of a color based on the intensity of red, green, and blue, but it does not imply a grouping of various values under a common identity as the term "color signature" does.