Sorry if I was less than clear - Argyle doesn't do the printing but does generate a test image for you to print.
It is important that you print the image with the print driver and settings you will use for printing your final photographs (but with no profile selected) as, at least in theory, any change to print driver settings may require a new profile. This is why I recommended earlier starting without profiles and getting a generally working gutenprint. Getting a reasonably neutral base print is a solid base for then correcting fully with a profile, or so I found anyway. Caution: This does take time and effort. If you are just going to use one type of paper and ink it is much easier and cheaper (but less fun) to get someone else to generate that single custom profile for you. Do spend lots of time reading at www.argyllcms.com/doc where you will find an unbelievable amount of knowledge and tools including the following. I think in principle you may want to: a) use targen to create an RGB test image (not CMYK). Note that the documentation for this gives specifi ColorMunki recommendations for patch numbers on various paper sizes. b) use printtarg to create a printable postscript or .tiff file from this. c) print the chart with your favourite print driver (gutenprint or photoprint) using consistent driver settings. d) use chartread to drive the ColorMunki and produce a calibration data file from your print. c) use colprof to read the above data file and produce your .icc profile There is a lot of flexibility and options for the tools :-) Read, read, read. A quick net search found thread 3174601 on dpreview which gave a usage example and specific parameters for the above parameters, but in the past I do remember finding better tutorial examples. Rgds, Rob. -----Original Message----- From: Pascal Obry [mailto:[email protected]] Sent: 04 April 2013 11:04 To: Rob Z. Smith Cc: Pascal de Bruijn; Darktable-users Subject: Re: [Darktable-users] Screen profile and image histogram... Hi Rob, > OK guys, if you are going to have a serious go at this, I can offer the > following from my prior usage: > > a) buy, beg or borrow a spectrophotometer of some sort. It is only the device > that matters as you won't be using its supplied software or charts. > b) install and run Argyle and use that to print an Argyle test chart. Don't > bother with the test chart or (probably windows) software that comes with > your device. You are going to be using Argyle profiling software and Argyle > format test charts, and it will do a much more comprehensive job than any > entry/mid level commercial software. It will drive the ColorMunki well > beyond its normal capabilities (probably) but is complex to understand. Ok! I did not know that Argyle was capable of printing charts :) > c) Print the Argyle generated test chart image using Gutenprint with whatever > paper/ink/resolution combination you want the profile for. You MUST choose > the 'Uncorrected' mode within Gutenprint for printing the test image. > d) Now use the Argyle tools to drive the ColorMunki and measure the printed > test image. This will generate your .icc profile. > e) Now try printing a real image using gutenprint in uncorrected mode and > with your new shiny profile selected. > > I must confess I hit a brick wall and couldn't get step (d) working properly. > Graeme Gill (author of Argyle) was good enough to provide a patch which > helped somewhat but we concluded that the firmware in my, otherwise > excellent, spectrophotometer needed upgrading and with a borrowed device I > couldn't do that. > Thanks a lot for this easy to understand procedure. Will try this when I'll be able to borrow a ColorMunki. Be sure I'll report about my findings. 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