[argyllcms] Re: Argyll 1.6.0 - Shallow blacks on Epson 3880
- From: Michael Darling <darlingm@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Fri, 20 Sep 2013 17:20:16 -0400
Is it known if the 1.6 drivers for i1 Photo Pro 2 & equivalent have the
same bug?
On Fri, Sep 20, 2013 at 4:56 PM, Serhat Abaci <serhat@xxxxxxxxxxxxxxxx>wrote:
> There is a BUG with 1.6 ColorMunki ArgyllCMS Drivers
> discussed here
> http://www.nifty-stuff.com/forum/viewtopic.php?pid=66874#p66874
> http://www.luminous-landscape.com/forum/index.php?topic=82171.0
> http://www.luminous-landscape.com/forum/index.php?topic=82133.0
>
> just revert to 1.4 and reread your patches
>
>
> 2013/9/20 Jacek Pytowski <jpyto@xxxxxxxxxxx>
>
>>
>>
>> Hi,
>>
>> ** **
>> I tried everything and nothing - I strongly need some help.****
>>
>> I’m trying to calibrate & profile my Epson 3880 and I’ve strange problem
>> with shallow blacks (shallow and cold) and with details in dark shadows
>> (very dark ones: 0;0;0 – 24;24;24) After some investigation I’ve found that
>> all profiles I’ve created are a little bit strange and provide to
>> transformation in which input value RGB (0, 0, 0) is processed to (5, 0,
>> 73)!****
>> 73 on blue channel! Nearly there is no difference printing with BPC or
>> without (without even is a little bit better).****
>> I compared those results to original Epson profile for Glossy paper and
>> their black color is processed to output value RGB(3, 2, 4) and on
>> printouts looks much more better.****
>>
>> Details:****
>> ---------------------****
>> * Printer: Epson 3880****
>> * Paper: Epson Premium Glossy Photo Paper****
>> * Measurement Device: ColorMunki Photo****
>> * Argyllcms : 1.6.0****
>>
>> Command lines used to create profile:****
>> ---------------------****
>> * targen -v0 -d2 -G -g128 -e8 -B8 –f2160 -c "Epson Stylus Pro
>> 3880_3885_3890 PremiumSemiglossPhotoPaper.icc" my_profile
>> * chartread -v -H my_profile
>> * colprof -v -qm -cmt -dpp -S "AdobeRGB1998.icc" my_profile****
>>
>> ti3 file: http://www.dane.pixel-tech.pl/temp/my_profile.ti3.txt
>>
>> Results (data):
>>
>> ---------------------
>>
>> * Test image (AdobeRGB):
>> http://www.dane.pixel-tech.pl/temp/Full_AdobeRGB_360dpi.jpg
>>
>> * Processed by original Epson profile (untagged RGB, raw output values to
>> printer):
>> http://www.dane.pixel-tech.pl/temp/ProcessedByOriginalEpsonProfile_RelativeIntent.png
>>
>> * Processed by my profile generated using Argyll (untagged RGB, raw
>> output values to printer):
>> http://www.dane.pixel-tech.pl/temp/ProcessedByArgyllProfile_RelativeIntent.png
>> ****
>>
>> Visual result on printouts:****
>> ---------------------****
>>
>> Original Epson profile: ****
>> * printout is too warm, even grays are not neutral but details in shadows
>> are perfect and black color is really deep.****
>>
>> My profile from Argyll:****
>> * printout is very neutral (maybe even a bit cold but not sure about
>> this), B&W parts are also very neutral. There is problem with details in
>> shadows especially visible in this place:
>> http://screencast.com/t/1WASD69fvA (on printout those areas are
>> completely flat). Black color is shallow if you compare it to this one from
>> Epson profile.****
>>
>> I will be appreciate for any help, suggestion etc. I tried a lot of
>> different parameters but main problem with black color still remains.****
>> Thanks in advance****
>>
>> Jacek
>>
>
>
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