• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: floats & Color APIs
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: floats & Color APIs


  • Subject: Re: floats & Color APIs
  • From: Gordon Apple <email@hidden>
  • Date: Wed, 25 Oct 2006 12:12:48 -0500

    The human eye can definitely tell a difference at 8 bits and maybe a few
more, particularly when areas are side-by-side.  You can easily see
contouring at that level in near-solid areas and even perceive mach-banding
that occurs due to pre-processing in the eye's retina.  16 is overkill, but
is the next convenient level and allows for processing re-quantization.
Floating point allows easy scaling, fading, etc.  Modern processors compute
floating point as easily (or even easier) than integer arithmetic.


--
Gordon Apple
Ed4U
Little Rock, AR
email@hidden




> I wouldn't be surprised if the human eye could perceive 10-12 bits of
> fidelity, but that's pushing it. 16 bits is almost certainly overkill.
>

 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

  • Follow-Ups:
    • Re: floats & Color APIs
      • From: John Stiles <email@hidden>
  • Prev by Date: Re: NSSplitView iTunes Like
  • Next by Date: Re: NSSplitView iTunes Like
  • Previous by thread: [Moderator] Re: floats & Color APIs
  • Next by thread: Re: floats & Color APIs
  • Index(es):
    • Date
    • Thread