Colour space conversion

ICC output intent

Syntax

XPath:/JDF[contains(@Types="ColorSpaceConversion")]/ResourcePool/ColorSpaceConversionParams/@ICCProfileUsage

Type

Enumeration

Supported values

Description

This parameter defines if the ICC profile "Output Intent" must be used as a destination profile, or not. This parameter is valid for PDF and PostScript documents.

The default value of @ICCProfileUsage is can be configured. The default value is "UsePDL".

ICC input profiles

Syntax

XPath (with FileSpec):

JDF[contains(@Types="ColorSpaceConversion")]/ResourcePool/ColorSpaceConversionParams/ColorSpaceConversionOp[@SourceCS and @Operation]

/FileSpec[@ResourceUsage="SourceProfile"and @MimeType="application/vnd.iccprofile"]/[@DescriptiveName or @URL]

XPath (without FileSpec):

JDF[contains(@Types="ColorSpaceConversion")]/ResourcePool/ColorSpaceConversionParams/ColorSpaceConversionOp[@SourceCS and @Operation]

Supported values

Description

Specify which ICC input profiles must be used when interpreting data from a specific incoming colour space (RGB or CMYK).

Possible operations are specified with @Operation and @SourceCS that must be present in ColorSpaceConversionOp.

One of the @Operation values "Tag", "Untag" or "Retag" must be specified for a given @SourceCS value. With the @Operation values "Tag" or "Retag", a FileSpec element must be present with @ResourceUsage and @MimeType. If embedded profiles are specified in the PDL, they can be overruled with @Operation values "Retag" or "Untag".

Several ColorSpaceConversionOp are allowed to be specified but none with the same @SourceCS value for the same @Operation value.

One parameter of @URL or @DescriptiveName must be specified.

If no ICC input profile is specified in ColorSpaceConversionOp, the PDL defaults are used. If the None input profile is specified (urn:icc:None) the PDL defaults are not used.

Example

This example shows how to select an (Adobe RGB 1998) profile as default ICC profile for RGB objects and (Coated FOGRA27 (ISO 12647-2:2004)) profile as default ICC profile for CMYK objects.

<JDF Types = "LayoutPreparation Imposition Interpreting Rendering ColorSpaceConversion DigitalPrinting">

<ResourcePool>

<ColorSpaceConversionParams ID = "res_1">

<ColorSpaceConversionOp SourceCS = "RGB" Operation="Tag">

<FileSpec ResouceUsage = "SourceProfile" MimeType="application/vnd.iccprofile" URL="urn:icc:AdobeRGB"/>

</ColorSpaceConversionOp>

<ColorSpaceConversionOp SourceCS = "CMYK" Operation="Tag">

<FileSpec ResouceUsage = "SourceProfile" MimeType="application/vnd.iccprofile" URL="urn:icc:FOGRA27_Coated"/>

</ColorSpaceConversionOp>

</ColorSpaceConversionParams>

</ResourcePool>

<ResourceLinkPool>

<ColorSpaceConversionParamsLink rRef = "res_1" Usage="Input"/>

</ResourceLinkPool>

</JDF>

ICC rendering intent

Syntax

XPath: /JDF[contains(@Types="ColorSpaceConversion")]/ResourcePool/ColorSpaceConversionParams/ColorSpaceConversionOp[@SourceCS and @Operation="Convert"]/@RenderingIntent

Type

Enumeration

Supported values

Description

This option defines which rendering intent must be used on data for a specific colour space (i.e RGB or CMYK).

If the @RenderingIntent is not specified, the used rendering intent depends of the colour space (RGB or CMYK) and is device specific.

@SourceCS and @Operation="Convert" must be present in ColorSpaceConversionOp.

Two ColorSpaceConversionOp can be specified: One for RGB colour space and one for CMYK colour space.

Example

This example shows how to select a Saturation rendering intent for RGB and Perceptual for CMYK.

<JDF Types = "LayoutPreparation Imposition Interpreting Rendering ColorSpaceConversion DigitalPrinting">

<ResourcePool>

<ColorSpaceConversionParams ID = "res_1">

<ColorSpaceConversionOp SourceCS = "RGB" Operation="Convert"RenderingIntent="Saturation"/>

<ColorSpaceConversionOp SourceCS = "CMYK" Operation="Convert"RenderingIntent="Perceptual"/>

</ColorSpaceConversionParams>

</ResourcePool>

<ResourceLinkPool>

<ColorSpaceConversionParamsLink rRef = "res_1" Usage="Input"/>

</ResourceLinkPool>

</JDF>

Colour mapping groups

Syntax

XPath: /JDF[contains(@Types=”ColorSpaceConversion”)]/ResourcePool/ColorSpaceConversionParams/GeneralID[@IDUsage="oce:ColorMappingGroup"]/@IDValue

Type

String

Supported values

Any colour mapping group in the Settings Editor.

Description

This option defines the colour mapping group that contains mappings from either RGB, CMYK or spot colour to a different spot colour.

If no colour mapping must be applied, do not use this option.

Remark

This option is available when @oce:MappingSelection of the spot colour table is set to value UseLocalPrinterValues.

If @oce:MappingSelection of the spot colour table is set to a value other than UseLocalPrinterValues, the selected colour mapping group is ignored. With a value other than UseLocalPrinterValues the resulting spot colours cannot be looked up in the spot colour table which is installed on the printer.

Example

This example shows how to select colour mapping group “group2”:

<JDF Type="Combined" Types="... ColorSpaceConversion ...">

<ResourcePool>

<ColorSpaceConversionParams ID="res_1">

<GeneralID IDUsage="oce: ColorMappingGroup" DataType=”string” IDValue=”group2”/>

</ColorSpaceConversionParams>

</ResourcePool>

</JDF>

Colour / black&white output

Syntax

XPath: /JDF[contains(@Types="DigitalPrinting")]/ResourcePool/ColorantControl/@ProcessColorModel

Type

Enumeration

Supported values

Description

This parameter defines if the output must be printed in colour or in black & white.