[Openicc] printer, driver, CUPS, PPD, printing GUI, ICC-profiles, colord, Oyranos, taxi....

[edmund ronald]

I would assume that Gutenprint would be running with very different inking
settings when using external color management (ie. printing DeviceRGB) from
when it attempts by itself to render images which is the legacy behavior
and needs to be preserved for existing users.

Edmund

On Wed, Jan 18, 2012 at 11:55 AM, Kai-Uwe Behrmann <ku.b at gmx.de> wrote:

> Am 17.01.12, 16:09 -0800 schrieb Michael Sweet:
>
>> On Jan 17, 2012, at 3:22 AM, Kai-Uwe Behrmann wrote:
>>
>>> Having that keyword described inside JPS will cover the ICC requirements
>>> more completely. Please correct:
>>>
>>> 5.6.33 printer-color-attributes (1setOf type2 keyword)
>>> The  RECOMMENDED "printer-color-attributes" Printer attribute lists all
>>> color related operation attributes that are influental to color appearance.
>>>
>>> You mentioned a similiar to cupsICCProfile qualifier attribute, but I
>>> could not find it in JPS3.
>>>
>>
>> The printer-icc-profiles attribute is a set (list) of collections, each
>> of which includes the profile URL and the attributes (qualifiers) and
>> associated values that will cause that profile to be selected.
>>
>> The following PPD usage:
>>
>>   *cupsICCQualifier1: ColorModel
>>   *cupsICCQualifier2: Resolution
>>   *cupsICCQualifier3: MediaType
>>   *cupsICCProfile Gray.360dpi./Draft Grayscale: "/path/to/gray-360.icc"
>>   *cupsICCProfile RGB.360dpi./Draft Color: "/path/to/rgb-360.icc"
>>   *cupsICCProfile RGB.720dpi.Glossy/Glossy Color:
>> "/path/to/rgb-720-glossy.icc"
>>   *cupsICCProfile Gray.720dpi.Matte/Matte Grayscale:
>> "/path/to/gray-720-matte.icc"
>>   *cupsICCProfile RGB.720dpi.Matte/Matte Color:
>> "/path/to/rgb-720-matte.icc"
>>
>> would map to the following printer-icc-profiles values in IPP:
>>
>>   { profile-name='Draft Grayscale' profile-uri='http://www.**
>> example.com/gray-360.icc <http://www.example.com/gray-360.icc>'
>> print-color-mode='monochrome' printer-resolution=360dpi }
>>
>>   { profile-name='Draft Color' profile-uri='http://www.**
>> example.com/rgb-360.icc <http://www.example.com/rgb-360.icc>'
>> print-color-mode='color' printer-resolution=360dpi }
>>
>>   { profile-name='Glossy Color' profile-uri='http://www.**
>> example.com/rgb-720-glossy.icc<http://www.example.com/rgb-720-glossy.icc>
>> **' print-color-mode='color' printer-resolution=720dpi
>> media-col={media-type='**photographic-glossy'} }
>>
>>   { profile-name='Matte Grayscale' profile-uri='http://www.**
>> example.com/gray-720-matte.icc<http://www.example.com/gray-720-matte.icc>
>> **' print-color-mode='monochrome' printer-resolution=720dpi
>> media-col={media-type='**photographic-matte'} }
>>
>>   { profile-name='Matte Color' profile-uri='http://www.**
>> example.com/rgb-720-matte.icc <http://www.example.com/rgb-720-matte.icc>'
>> print-color-mode='color' printer-resolution=720dpi media-col={media-type='
>> **photographic-matte'} }
>>
>
> Can a empty profile be published by a printer for listing the colour
> related options?
> printer-icc-profiles={ print-color-mode='' printer-resolution='' }
>
> That way clients know the required meta data for profile association.
> E.g. Gutenprint will come assumedly with no profiles for most of it's
> supported printers.
>
>
> kind regards
> Kai-Uwe Behrmann
> --
> developing for colour management www.behrmann.name + www.oyranos.org
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