Re: Lab to Dot percentage
Re: Lab to Dot percentage
- Subject: Re: Lab to Dot percentage
- From: Bret Hesler <email@hidden>
- Date: Tue, 06 Jun 2006 15:33:56 -0400
- Thread-topic: Lab to Dot percentage
I believe Visual density can be calculated from the Y of XYZ, buy not CMY
densities. I have to check my source, but I think is is Log10(100/Y) to get
density, then the dot formulas are pretty straight forward.
--
Bret Hesler
L.P. Thebault Company
On 6/6/06 3:03 PM, "email@hidden"
<email@hidden> wrote:
> Message: 10
> Date: Tue, 6 Jun 2006 13:37:21 -0500
> From: "Roberto Michelena" <email@hidden>
> Subject: Re: Lab to Dot percentage
> To: "ColorSync Users List" <email@hidden>
> Message-ID:
> <email@hidden>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Rich,
>
> Actually it's not possible to calculate density (status T or E or
> whatever) from Lab. For that you'd need the spectral measurements.
> You can get Dot Percentage and/or Dot Gain, however; you can find the
> formulas in Bruce Lindbloom's site: www.brucelindbloom.com
>
> -- Roberto Michelena
> Infinitek
> Lima, Peru
>
>
> ------------------------------
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