Re: LCH values software?
Re: LCH values software?
- Subject: Re: LCH values software?
- From: Marco Ugolini <email@hidden>
- Date: Tue, 12 Jun 2007 09:22:53 -0700 (GMT-07:00)
>From: Terry Wyse <email@hidden>
>Sent: Jun 12, 2007 8:55 AM
>To: ColorSync User List List <email@hidden>
>Subject: Re: LCH values software?
>
>I mentioned ColorShopX but doing an Excel spreadsheet is a piece of
>cake to convert from Lab to Lch. The only thing slightly tricky is
>the hue angle value. Stop in at Bruce Lindbloom's site to get the math.
Mauro Boscarol's message (posted yesterday) contains the exact formulas (tricky math included) to be placed in an Excel worksheet for the desired Lab-to-LCH(ab) conversion.
I checked the results in Excel against both Bruce Lindbloom's CIE Color Calculator and Robin Myers' Color Converter utility, and they match.
Marco Ugolini
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