In your Photoshop test, the B2A table of the Argyll produced inkjet
output device profile was used to convert the image. Whereas in
your Argyll devicelink test, you had used Argyll's -G flag which
builds a devicelink using inverted A2B in the destination profile,
not the B2A table. Your test removes the most likely source of the
"banding ugliness" that you're seeing.
Excellent.
So we are all agreed that you can get better results if you do your
colour conversions outside of Photoshop!
You can also get better results in Photoshop using a better behaving
profile, which is primarily what your test demonstrates. Not that they
can be better outside of Photoshop.
On Nov 2, 2009, at 3:44 PM, Martin Orpen wrote:
I was using this example to prove that the banding could not be
blamed solely on errors in the profile or problems with the
destination printer.
Again, your example does not prove this.
Chris Murphy
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