Re: purpose of Granger rainbow chart?
Re: purpose of Granger rainbow chart?
- Subject: Re: purpose of Granger rainbow chart?
- From: Jacob Rus <email@hidden>
- Date: Mon, 8 Mar 2010 01:20:47 -0800
Roger Breton wrote:
> A "Granger" rainbow can be created with the tools of Photoshop. Not too
> difficult to do with a basic gradients mastery. What's unique about this
> kind of image is its sheer color appearance, which always glues me to the
> screen, every time I have one up on my display -- everything seems so
> perfect in it.
>
> It's a very good test image for use with any color transforms. Why? Because,
> other than showing the huge loss of saturation when going from RGB to CMYK,
> for example, it also brutally brings out the underlying behaviour of a color
> profile. Bad feature of an output profile like tonal discontinuities
> immediately jump out.
Are we talking about the same "Granger rainbow" as described by the
luminous landscape page? Because if so, it inherently has pretty
severe tonal discontinuities, which are going to jump out no matter
what you do with it.
Cheers,
Jacob
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden