Canon PRISMAdirect Manual

[Rendering in-
tent]

The [Rendering intent] defines the color conversion strategy that is needed
because colour gamuts differ per device (monitors, printers). The required
print quality determines the rendering intent you need for an optimal color
conversion.
The following options are available.
• [Absolute colorimetric]

The exact colors that are within the gamut of the printer are kept, even
the colors near the white point. Prints white areas with a light back-
ground. The out-of gamut colors are mapped to colors on the border of
the printer gamut. Details, continuity and contrast in colored areas can be
lost due to the mapping.
This setting is useful to map spot colors and it is useful to make proof
prints.

• [Relative colorimetric]

The exact colors that are within the gamut of the printer are kept, except
the colors near the white point. Prints white areas perfectly white (no to-
ner or ink is used). The out-of gamut colors are mapped to colors on the
border of the printer gamut. Details, continuity and contrast in colored
areas can be lost due to the mapping.
This setting is useful to make proof prints.

• [Perceptual] (default)

All colors are converted relative to each other, preserving details, continu-
ity and contrast. The out-of gamut colors are mapped to colors within the
printer gamut. Prints white areas perfectly white (no toner or ink is used).
This setting is useful to print images or photos.

• [Saturation]

All colors are converted relative to each other, preserving saturated col-
ors and pure colors as much as possible. The out-of gamut colors are
mapped to colors within the printer gamut. Prints white areas perfectly
white (no toner or ink is used).
This setting is useful for presentations, line-art, histograms, artist impres-
sions, business graphics, et cetera.

[Use embedded
profiles and Devi-
ceRGB settings]

Embedded color profiles are used. [Input profile] and [Rendering intent] set-
tings are used for objects in documents with DeviceRGB color specification.

[Overrule embed-
ded profiles with
DeviceRGB set-
tings]

Embedded color profiles are overruled with the [Input profile] and [Render-
ing intent] settings. [Input profile] and [Rendering intent] settings are used
for objects in documents with DeviceRGB color specification.

[Input profile]

[Input profile] defines a reference color workspace for the color data of the
objects in the document. An [Input profile] is used to define colors in a de-
vice independent way.
The DeviceCMYK profiles list contains color profiles as defined by formal
standardization organizations. Select the same CMYK color profile that was
used to create the document. Select no color profile to leave the DeviceC-
MYK color specification as is.

4

PRISMAdirect v1.2