Brother MFC-5100C Owner's Manual page 134

Colour Sync Dialog
Perceptual Matching—All the colours of a given gamut are scaled proportionally to fit within
another gamut. This intent pretty much maintain the balance between the colours in the image. This
intent is the best choice for realistic images, such as scanned photographs.
Saturation Matching—The relative saturation of colours is maintained from gamut to gamut. So
basically the colours are shifted to the edge of the gamut to get the most saturated colour possible.
Rendering the image using this intent gives the strongest colours and is the best choice for bar graphs
and pie charts, in which the actual colour displayed is less important than its vividness.
Relative Colorimetric Matching—The colors that fall within the gamuts of both devices are left
unchanged. Some colors in both images will be exactly the same, a useful outcome when colors must
match quantitatively. What that means is that if the colour is inside the gamut, it will stay the same
colour. However, if the colour is outside the gamut, it will be mapped to the edge of the gamut. This
intent is best suited for logos or "spot colors" where colour must match.
Absolute Colorimetric Matching—A close appearance match may be achieved over most of the
tonal range, but if the minimum density of the idealized image is different from that of the output
image, the areas of the image that are left blank will be different. Colors that fall within the gamuts
of both devices are left unchanged.
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Chapter 18