Apple Color 1.0 User Manual download pdf (Page 117)

100

101

Chapter 6 Monitoring 117

When extruded into 3D space, the gamut and chromaticity of different devices create

different shapes. For example, the standard RGB color space can be represented with a

simple cube (as seen in the ColorSync Utility application):

Each corner of the cube represents a different mix of the R,G,B tristimulus values that

represent each color. The black corner is (0,0,0), the opposing white corner is (1,1,1), the

blue corner is (0,0,1), the red corner is (1,0,0), and so forth. The RGB color cube is an

idealized abstraction, however. Actual display devices appear with much different

shapes, defined by their individual gamut and chromaticity.

To accurately transform one device’s gamut to match that of another involves literally

projecting its gamut into a 3D representation and then mathematically changing its

shape to match that of the other device or standard. This process is referred to as

characterizing a device, and is the standard method used by the color management

industry. Once calculated, the method of transformation is stored as a 3D LUT file.

Once a device has been characterized and the necessary LUT has been calculated, the

hard computational work is done, and the LUT can be used within Color to modify the

output image without any significant impact on real-time performance.

1 2 ... 112 113 114 115 116 117 118 119 120 121 122 ... 363 364

Comments to this Manuals

No comments

Apple Color 1.0 User Manual Page 117

Comments to this Manuals

Related products and manuals for Software Apple Color 1.0