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- Path: ip049.phx.primenet.com!wturber
- From: wturber@primenet.com (Walter (Jay) Turberville (III))
- Newsgroups: comp.sys.amiga.graphics,comp.graphics.apps.lightwave,comp.sys.sgi.graphics,alt.design.graphics,comp.graphics.apps.alias
- Subject: Re: Web Design & Pantone to RGB
- Date: 5 Apr 1996 15:47:00 -0700
- Organization: Primenet Services for the Internet
- Sender: root@primenet.com
- Message-ID: <wturber.64.3E0586BE@primenet.com>
- References: <4jsbc9$r79@news1.io.org> <4jt0c9$d7d@nntp1.best.com> <316346F9.167E@wn.planet.gen.nz>
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-
-
- >Yeah it's a pain. Basically there are some colours that you can print
- >(mainly cyans and light greens) but you can't get the exact same colour
- >in rgb space (because rgb is just fooling our eyes into thinking it's
- >seeing a particular wavelength of light).
-
- >Photoshop 3.0 has the best colour space conversion I've seen (much
- >better than Corel) but it's still not perfect but at least the pantone
- >colours look about right on the screen.
- >--
- >Jon Allitt ph +64 4 801 9555
-
- We have a Pantone Swatch book. I enter the CMYK values printed on the
- swatch into Photoshop's color picker and then note the RGB values that were
- generated. This gets you in the ballpark. After that, I fiddle with values
- as is required by the application that I am using to generate the image. For
- instance, if it is the surface of LightWave object, I enter the RGB values and
- do a final adjustment only after the animation lighting and basic motions are
- finished. Since the rendering is "3D" and the object is described by a lot of
- "variations" on the specified RGB color there can be no exact match. I
- make adjustments to RGB (paying careful attention not to change the overall
- proportion between the colors too much), luminance and diffuse until the
- overall color is similar to the swatch in the Pantone book (to bring the
- process back full circle). Lot of judgement involved, but it does seem to
- work.
-
- As everybody here has agreed, the colors don't match. Part of the
- problem is the difference between CMYK and RGB color space but I think a
- bigger problem is that a monitor is radiating color while printed material is
- reflecting. There are different brightnesses and contrasts working against
- you.
- Walter (Jay) Turberville |wturber@primenet.com wturber@aol.com
- Studio 522 Productions |http://www.primenet.com/~wturber
- http://www.studio522.com |ftp.primenet.com/users/w/wturber
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