[argyllcms] Re: AW: Re: Create RGB printer .ICM to use in Photoshop CS5
- From: Wim Hertog <nertog@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Thu, 20 Oct 2011 10:59:40 +0200
Phil,
That W7 thing could be an issue. The strange thing is that it only happens
with profiles made with Argyll. PM5 profiles are perfectly ok...I'll give it
a try when I'm home this evening. Do you have more info on the soft proofing
problem?
With "RGB" printers I mean a printer where the printer driver wants RGB
data, not CMYK. Almost every office to semi-pro printer that doesn't use a
special RIP has an RGB driver.
Many thanks,
Wim
2011/10/20 Wim Hertog <nertog@xxxxxxxxx>
> Hi Vladimir,
>
> I'm a bit confused now. Alan just wrote that he only profiles his Epson
> 3880 and after that his prints match his calibrated monitor. My experience
> is that the profile just characterizes the printer but does not change the
> way it prints, in other words, it can not match print to monitor. Am I wrong
> in this?
>
> The process you described is what I did and I have the same results. After
> the extra step of applying the correction curves (either in the profile or
> as a PS curve) the whole image changes but prints quite ok.
>
> In every other profiling package however, I can match my print to monitor
> using just 1 step: converting to the printer profile. This profile includes
> the correction curves and applies them without making the softproof in PS
> unuseable. In other words: 1 confusing step less when printing.
>
> Could you clarify this a bit for me?
>
> Thanks,
> Wim
>
>
>
>
> 2011/10/20 Vladimir Gajic <vgajic67@xxxxxxxxxxxxxx>
>
>> Hi Wim,
>>
>> the Idea of calibrating the printer before building a profile is simply to
>> keep your device in a constant printing condition. The process could also
>> look like this:
>>
>> 1. You create a printer calibration witch results in a .cal-file. During
>> the calibration process you also can create a Photoshop curve, witch can
>> illustrate the whole procedure IMHO mutch better
>>
>> 2. You generate a RGB-target for your profile, applying the .cal you
>> created in the previous step. You also can skip adding the .cal using
>> printarg, simply open the file in PS and apply the generated PS-curve BEFORE
>> printing the file.
>>
>> 3. Generate the profile
>>
>> 4. The printing process could look like this:
>> - open your image and convert to the device profile. You will notice that
>> the image looks correct. This is also your softproof.
>> -now apply your curve. The image changes in a strange way, but will be
>> printed correctly.
>>
>> The Idea behind: profile once, calibrate many.
>>
>> Your printer may change in time. Any cartrige replacement, even if you are
>> using original inks, can produce colour shifts. The same applies to the
>> substrates you are using. In that case it's enough to recalibrate your
>> printer generating a new .cal and PS-curve.
>>
>> There are also different ways to work with an calibrated workflow (e.g.
>> applying .cal using cctiff, or linking the .cal directly to the profile).
>> Anyway, the described procedure was for me a good starting point for
>> understanding the whole stuff.
>>
>> Hope this helps.
>>
>> Cheers
>> Vladimir
>>
>>
>> -- Gesendet von meinem Palm Pre
>>
>> ------------------------------
>> Wim Hertog <nertog@xxxxxxxxx> schrieb am 20.10.2011 10:02:
>>
>> Hmm, so the profiling step alone should do the trick then? I thought
>> profiling only characterized the printer and you needed the calibration step
>> in order to actually change the printing behaviour. If the profiling step by
>> itself is enough to create prints matching my (with argyll) calibrated
>> monitor, I must be doing something wrong somewhere...
>>
>> After following the tutorial and profiling the printer the gamut shape and
>> softproof look perfect. Very similar to what I get from PM5. The printout
>> using this profile results in a horrible yellow-brown cast though. I follow
>> my usual workflow while printing: windows CM is turned off in the canon
>> driver and photoshop manages colours using the generated profile. I'm pretty
>> sure it's not double profiling anywhere.
>>
>> I must be doing something wrong somewhere but I literally read the
>> tutorial a 100 times and tried everything and always get the same result: a
>> strong yellow brown cast together with totally blocked shadows.
>>
>> Anyone has any idea what's happening or....a link to another tutorial to
>> double check?
>>
>> Wim
>>
>>
>> 2011/10/20 Graeme Gill <graeme@xxxxxxxxxxxxx>
>>
>>> Wim Hertog wrote:
>>> > Now, the above workflow results in some strange outcomes: the colours
>>> of
>>> > the softproof in photoshop are completely off (the same happens when I
>>> > convert to above generated icc file). The image prints ok (ok doesn't
>>> > mean as good as I want though), nothing like the softproof shows.
>>> > However, when I don't add the .cal file to the icm (last step), the
>>> > softproof is perfect but the actual printed image is horribly wrong
>>> As suggested in the tutorial, get just profiling working first. There
>>> are too many variable otherwise, and the first thing you do in diagnosing
>>> a problem is break things down into individual steps anyway.
>>>
>>> Graeme Gill.
>>>
>>>
>>
>>
>>
>
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