Re: gamma bewilderment wrt/ Argyll’s documentation
Re: gamma bewilderment wrt/ Argyll’s documentation
- Subject: Re: gamma bewilderment wrt/ Argyll’s documentation
- From: Ben Goren <email@hidden>
- Date: Tue, 29 Mar 2016 10:28:42 -0700
On Mar 29, 2016, at 10:15 AM, Andrew Rodney <email@hidden> wrote:
>> On Mar 29, 2016, at 11:03 AM, Ben Goren <email@hidden> wrote:
>>
>> For the same reason working spaces use gamma encoding: more efficient use of the bits.
>
> Is that a factor with high bit data? IF so, can you provide some files to illustrate this issue? Thanks!
A lot of displays / graphic cards on the market are still bragging about having 10-bit internal LUTs, which tells me that there're still lots with 8-bit LUTs -- and even ten bits could still be problematic if you're not handling it well. So it wouldn't matter much how your data is encoded on disk if it's getting quantized down at the display.
As an extreme, imagine trying to profile / characterize / pre-condition a true black-and-white device such as an old-fashioned laser printer. You've got a single-bit transfer function and are left with dithering (halftoning, etc.) to get more gradations. And I'm sure there're still displays out there that get to their higher advertised bit depths through dithering...it wasn't all that long ago such was common on laptops....
b&
_______________________________________________
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