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Re: [csswg-drafts] [css-color-hdr-1] Compositing SDR in HDR outputs (#5323)

From: Andrew Somers via GitHub <sysbot+gh@w3.org>
Date: Tue, 15 Dec 2020 13:58:30 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-745302365-1608040709-sysbot+gh@w3.org>
I have not read the following book as yet, but the article abstract sounds interesting:


In essence it "seems" the be taking the lower 5% and upper 5% of the SDR image (by luminance) processing it and expanding the low and the high. Considering how typical color correction soft clips the low and high, this makes some sense as an expansion — part of the processing involves some noise cancelling, that's all I could gleen from the abstract.

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