Glen,
On Apr 20, 2012, at 8:04 AM, Petrie, Glen wrote:
> Monochrome is defined as "the range of shades of a single Color to
> white" and not a single colorant and not just black.
As defined in JPS3, monochrome is output using a single colorant. This was the definition that everyone agreed to 2 years ago after hours of discussion at the December 2010 F2F.
"process-monochrome" was added at that meeting to address the many use cases where a vendor might want to use multiple colorants to produce a single color - typically black but it could be any color/effect.
Further definition/clarification about halftoning and continuous tone printing was deemed too implementation-specific to be added - the compromise was to add bi-level and process-bi-level for threshold output with monochrome and process-monochrome mapping to grayscale/shaded output.
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Michael Sweet, Senior Printing System Engineer, PWG Chair
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