Re: HDR and ICC
Re: HDR and ICC
- Subject: Re: HDR and ICC
- From: Jon Meyer via colorsync-users <email@hidden>
- Date: Sun, 19 Nov 2023 04:52:04 -0500
Thank you Graham for explaining v4.4
This is the first specification supporting full HDR bit depth for camera input
files.
Has anyone built a compliant camera profiling tool?
Jon
Sent from my iPhone
> On Nov 18, 2023, at 10:29 PM, Graeme Gill via colorsync-users
> <email@hidden> wrote:
>
> Jon Meyer via colorsync-users wrote:
>
>> As you may know, HDR is a 64bit definition. ICC is a 16bit algorithm.
>
> I'm not sure what you mean by HDR being "64 bit". Most video streams are
> 16 bits per component or less. Typical displays are 10 - 12 bits at most.
> ICC V2 has 16 bit per channel precision and V4.4 can accommodate 32 bit
> per channel floating point profiles.
>
> So any issues with creating ICC profiles for HDR displays is purely about
> standards (such as what to regard as your white point luminance level),
> not the underlying capability of the ICC profile itself.
>
> Cheers,
>
> Graeme Gill.
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| | >Re: HDR and ICC (From: Graeme Gill via colorsync-users <email@hidden>) |