[argyllcms] Re: Gray patch in targen

  • From: carlo rondinelli <carlorondinelli@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Fri, 29 May 2015 22:16:40 +0200

On 29/05/15 17:34, Alan Goldhammer wrote:

If you are going to use your profile to print B/W images it is indeed useful
to include extra gray patches. I have found that 51 is a useful number to
get a better B/W step in prints. In my opinion 256 is too many. The Argyll
command is '-g51'

Alan



-----Original Message-----
From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx]
On Behalf Of carlo rondinelli
Sent: Friday, May 29, 2015 7:36 AM
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] Gray patch in targen

Goodmorning everyone,

I wanted to ask if in the string "targen", using the -g command, it can be
helpful to have a high number of gray patches, such as 256.
To obtain this patch number, which value I must add to -g?

Thank you.

Carlo

--
Carlo Rondinelli - Still-life e Fotografia Immersiva per Virtual Tour
mob: + 39 389 9757042
mail: carlorondinelli@xxxxxxxxx - skype: carlopano360
flickr.com/photos/carlorondinelli - alessiasalera.com




Good evening everyone,

thanks for the reply Alan, exact, my intent is to get an ICC profile optimized for printing in B&W. I had indicated 256 because I had read in a forum that is a number of patch that allows to obtain a very good profile for a B&W print: "... all possible levels of gray of a print in 8 bit per channel..."
If according to your experience, 51 patches are enough, I trust.

Thanks again.

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